ignore.list

   1 // List of preferences to ignore during comparison with Firefox upstream prefs
   2 // Preference names must use double quotes
   3
   4 // Don't touch Firefox social API preferences, fully opt-in
   5 "social.whitelist"
   6 "social.toast-notifications.enabled"
   7 "social.shareDirectory"
   8 "social.remote-install.enabled"
   9 "social.directories"
  10 "social.share.activationPanelEnabled"
  11 "social.enabled"
  12
  13 // Don't disable Firefox Sync, fully opt-in
  14 // https://wiki.mozilla.org/Services/Sync
  15 "services.sync.enabled"
  16
  17 // Don't touch other Firefox Sync Settings
  18 "services.sync.prefs.sync.accessibility.blockautorefresh"
  19 "services.sync.prefs.sync.accessibility.browsewithcaret"
  20 "services.sync.prefs.sync.accessibility.typeaheadfind"
  21 "services.sync.prefs.sync.accessibility.typeaheadfind.linksonly"
  22 "services.sync.prefs.sync.addons.ignoreUserEnabledChanges"
  23 "services.sync.prefs.sync.browser.ctrlTab.previews"
  24 "services.sync.prefs.sync.browser.download.useDownloadDir"
  25 "services.sync.prefs.sync.browser.formfill.enable"
  26 "services.sync.prefs.sync.browser.link.open_newwindow"
  27 "services.sync.prefs.sync.browser.newtabpage.enabled"
  28 "services.sync.prefs.sync.browser.newtabpage.enhanced"
  29 "services.sync.prefs.sync.browser.newtabpage.pinned"
  30 "services.sync.prefs.sync.browser.offline-apps.notify"
  31 "services.sync.prefs.sync.browser.safebrowsing.malware.enabled"
  32 "services.sync.prefs.sync.browser.safebrowsing.phishing.enabled"
  33 "services.sync.prefs.sync.browser.search.update"
  34 "services.sync.prefs.sync.browser.sessionstore.restore_on_demand"
  35 "services.sync.prefs.sync.browser.startup.homepage"
  36 "services.sync.prefs.sync.browser.startup.page"
  37 "services.sync.prefs.sync.browser.tabs.loadInBackground"
  38 "services.sync.prefs.sync.browser.tabs.warnOnClose"
  39 "services.sync.prefs.sync.browser.tabs.warnOnOpen"
  40 "services.sync.prefs.sync.browser.urlbar.autocomplete.enabled"
  41 "services.sync.prefs.sync.browser.urlbar.maxRichResults"
  42 "services.sync.prefs.sync.browser.urlbar.suggest.bookmark"
  43 "services.sync.prefs.sync.browser.urlbar.suggest.history"
  44 "services.sync.prefs.sync.browser.urlbar.suggest.history.onlyTyped"
  45 "services.sync.prefs.sync.browser.urlbar.suggest.openpage"
  46 "services.sync.prefs.sync.browser.urlbar.suggest.searches"
  47 "services.sync.prefs.sync.dom.disable_open_during_load"
  48 "services.sync.prefs.sync.dom.disable_window_flip"
  49 "services.sync.prefs.sync.dom.disable_window_move_resize"
  50 "services.sync.prefs.sync.dom.event.contextmenu.enabled"
  51 "services.sync.prefs.sync.extensions.personas.current"
  52 "services.sync.prefs.sync.extensions.update.enabled"
  53 "services.sync.prefs.sync.intl.accept_languages"
  54 "services.sync.prefs.sync.javascript.enabled"
  55 "services.sync.prefs.sync.layout.spellcheckDefault"
  56 "services.sync.prefs.sync.lightweightThemes.selectedThemeID"
  57 "services.sync.prefs.sync.lightweightThemes.usedThemes"
  58 "services.sync.prefs.sync.network.cookie.cookieBehavior"
  59 "services.sync.prefs.sync.network.cookie.lifetime.days"
  60 "services.sync.prefs.sync.network.cookie.lifetimePolicy"
  61 "services.sync.prefs.sync.network.cookie.thirdparty.sessionOnly"
  62 "services.sync.prefs.sync.permissions.default.image"
  63 "services.sync.prefs.sync.pref.advanced.images.disable_button.view_image"
  64 "services.sync.prefs.sync.pref.advanced.javascript.disable_button.advanced"
  65 "services.sync.prefs.sync.pref.downloads.disable_button.edit_actions"
  66 "services.sync.prefs.sync.pref.privacy.disable_button.cookie_exceptions"
  67 "services.sync.prefs.sync.privacy.clearOnShutdown.cache"
  68 "services.sync.prefs.sync.privacy.clearOnShutdown.cookies"
  69 "services.sync.prefs.sync.privacy.clearOnShutdown.downloads"
  70 "services.sync.prefs.sync.privacy.clearOnShutdown.formdata"
  71 "services.sync.prefs.sync.privacy.clearOnShutdown.history"
  72 "services.sync.prefs.sync.privacy.clearOnShutdown.offlineApps"
  73 "services.sync.prefs.sync.privacy.clearOnShutdown.sessions"
  74 "services.sync.prefs.sync.privacy.clearOnShutdown.siteSettings"
  75 "services.sync.prefs.sync.privacy.donottrackheader.enabled"
  76 "services.sync.prefs.sync.privacy.sanitize.sanitizeOnShutdown"
  77 "services.sync.prefs.sync.privacy.trackingprotection.enabled"
  78 "services.sync.prefs.sync.privacy.trackingprotection.pbmode.enabled"
  79 "services.sync.prefs.sync.security.default_personal_cert"
  80 "services.sync.prefs.sync.security.OCSP.enabled"
  81 "services.sync.prefs.sync.security.OCSP.require"
  82 "services.sync.prefs.sync.security.tls.version.max"
  83 "services.sync.prefs.sync.security.tls.version.min"
  84 "services.sync.prefs.sync.services.sync.syncedTabs.showRemoteIcons"
  85 "services.sync.prefs.sync.signon.rememberSignons"
  86 "services.sync.prefs.sync.spellchecker.dictionary"
  87 "services.sync.prefs.sync.xpinstall.whitelist.required"
  88 "services.sync.registerEngines"
  89 "services.sync.sendTabToDevice.enabled"
  90 "services.sync.syncedTabs.showRemoteIcons"
  91
  92 // Don't touch other geospecific search settings, browser.search.geoSpecificDefaults master switch is false
  93 "browser.search.geoSpecificDefaults.url"
  94
  95 // Deprecated Do Not Track setting, Firefox <36, https://hg.mozilla.org/mozilla-central/rev/9a16137bc7b4
  96 "privacy.donottrackheader.value"
  97
  98 // Don't alter safebrowsing.downloads.* options, safebrowsing.downloads.enabled master switch is off
  99 "browser.safebrowsing.downloads.remote.block_potentially_unwanted" // (FF48+)
 100 "browser.safebrowsing.downloads.remote.block_uncommon" // (FF48+)
 101 "browser.safebrowsing.downloads.remote.block_dangerous" // (FF49+)
 102 "browser.safebrowsing.downloads.remote.block_dangerous_host" // (FF49+)
 103 // Don't alter URL for binary downloads check
 104 "browser.safebrowsing.downloads.remote.url"
 105
 106 // Don't alter Mozilla/Google update URLs for safebrowsing data, safebrowsing should stay enabled
 107 "browser.safebrowsing.provider.google.updateURL" // update google lists
 108 "browser.safebrowsing.provider.google.gethashURL" // list hash check
 109 "browser.safebrowsing.provider.google4.updateURL" // (FF50+)
 110 "browser.safebrowsing.provider.google4.gethashURL" // (FF50+)
 111 "browser.safebrowsing.gethashURL"
 112 "browser.safebrowsing.malware.reportURL"
 113 "browser.safebrowsing.provider.google.appRepURL"
 114 "browser.safebrowsing.reportErrorURL"
 115 "browser.safebrowsing.reportGenericURL"
 116 "browser.safebrowsing.reportMalwareErrorURL"
 117 "browser.safebrowsing.reportMalwareURL"
 118 "browser.safebrowsing.reportURL"
 119 "browser.safebrowsing.updateURL"
 120 "browser.safebrowsing.provider.mozilla.gethashURL" // resolves hash conflicts
 121 "browser.safebrowsing.provider.mozilla.updateURL" // update FF lists
 122
 123 // Don't touch Other Safebrowsing blocklist settings
 124 "urlclassifier.alternate_error_page"
 125 "urlclassifier.blockedTable"
 126 "urlclassifier.disallow_completions"
 127 "urlclassifier.downloadAllowTable"
 128 "urlclassifier.downloadBlockTable"
 129 "urlclassifier.flashAllowExceptTable"
 130 "urlclassifier.flashAllowTable"
 131 "urlclassifier.flashExceptTable"
 132 "urlclassifier.flashSubDocExceptTable"
 133 "urlclassifier.flashSubDocTable"
 134 "urlclassifier.flashTable"
 135 "urlclassifier.gethashnoise"
 136 "urlclassifier.gethash.timeout_ms"
 137 "urlclassifier.malwareTable"
 138 "urlclassifier.max-complete-age"
 139 "urlclassifier.phishTable"
 140 "urlclassifier.trackingTable"
 141 "urlclassifier.trackingWhitelistTable"
 142 "urlclassifier.updateinterval"
 143
 144 // Do NOT select "clear passwords" in clear private data dialog (relaxed) (usability)
 145 "privacy.cpd.passwords"
 146
 147 // Do NOT select "site settings" in clear private data dialog (relaxed) (usability)
 148 "privacy.clearOnShutdown.siteSettings"
 149
 150 // Don't disable featured extensions list in add-ons tab
 151 "extensions.webservice.discoverURL"
 152
 153 // Don't change fine telemetry options, telemetry is disabled
 154 "toolkit.telemetry.unifiedIsOptIn"
 155 "toolkit.telemetry.server"
 156 "toolkit.telemetry.archive.enabled"
 157 "toolkit.telemetry.cachedClientID"
 158 "toolkit.telemetry.debugSlowSql"
 159 "toolkit.telemetry.infoURL"
 160 "toolkit.telemetry.server_owner"
 161
 162 // Don't change SVG options, SVG is disabled
 163 "svg.context-properties.content.enabled"
 164 "svg.display-lists.hit-testing.enabled"
 165 "svg.display-lists.painting.enabled"
 166 "svg.marker-improvements.enabled"
 167 "svg.new-getBBox.enabled"
 168 "svg.paint-order.enabled"
 169 "svg.path-caching.enabled"
 170 "svg.transform-box.enabled"
 171
 172 // Don't disable local about:healthreport page, remote healthreport submission is disabled. locale/css+js+json for this page are requested from mozilla
 173 "datareporting.healthreport.about.reportUrl"
 174
 175 // Don't change New Tab page/tiles specific options, new tab page is disabled
 176 "browser.newtabpage.introShown"
 177
 178 // Don't change per-tab back/forward history retention (default: 50 URLs). Can be queried via JavaScript (relaxed) (usability)
 179 "browser.sessionhistory.max_entries"
 180
 181 // Don't change Windows-specific taskbar/jumplist options (UI)
 182 "browser.taskbar.lists.enabled"
 183 "browser.taskbar.lists.frequent.enabled"
 184 "browser.taskbar.lists.recent.enabled"
 185 "browser.taskbar.lists.tasks.enabled"
 186 "browser.taskbar.previews.enable"
 187
 188 // Don't disable intermediate certificate caching, breaks many sites, fingerprint via intermediate CA caching can be prevented by blocking cross-site requests. (relaxed) (compatibility)
 189 "security.nocertdb"
 190
 191 // Don't change supported PeerConnection/WebRTC functionality, WebRTC is disabled via master switch.
 192 "media.peerconnection.use_document_iceservers"
 193 "media.peerconnection.video.enabled"
 194 "media.peerconnection.identity.enabled"
 195 "media.peerconnection.identity.timeout"
 196 "media.peerconnection.turn.disable"
 197
 198 // Don't disable full screen API/support (relaxed) (usability)
 199 "full-screen-api.enabled""
 200
 201 // Don't change fine VR API options, VR support is disabled via master switch
 202 "dom.vr.oculus.enabled"
 203 "dom.vr.osvr.enabled" // (Firefox >= 49)
 204 "dom.vr.openvr.enabled" // (Firefox >=51)
 205
 206 // Don't change disk cache settings, disk cache is disabled
 207 "browser.cache.disk.capacity"
 208 "browser.cache.disk.smart_size.enabled"
 209 "browser.cache.disk.smart_size.first_run"
 210
 211 // Don't alter default fonts (UI)
 212 "font.name.monospace.x-unicode"
 213 "font.name.monospace.x-western"
 214 "font.name.sans-serif.x-unicode"
 215 "font.name.sans-serif.x-western"
 216 "font.name.serif.x-unicode"
 217 "font.name.serif.x-western"
 218
 219 // Don't touch about:config warning message (UI)
 220 "general.warnOnAboutConfig"
 221
 222 // Don't try to prevent javascript popup window manipulation (size/toolbars...) (UI)
 223 "dom.disable_window_flip" // window z-order
 224 "dom.disable_window_move_resize"
 225 "dom.disable_window_open_feature.close"
 226 "dom.disable_window_open_feature.minimizable"
 227 "dom.disable_window_open_feature.personalbar" //bookmarks toolbar
 228 "dom.disable_window_open_feature.titlebar"
 229 "dom.disable_window_status_change"
 230 "dom.allow_scripts_to_close_windows"
 231 "dom.disable_window_status_change"
 232
 233 // Show "View source" in a separate window instead of tab (UI)
 234 "view_source.tab"
 235
 236 // Other "View source" settings
 237 "view_source.editor.args"
 238 "view_source.editor.external"
 239 "view_source.editor.path"
 240 "view_source.syntax_highlight"
 241 "view_source.wrap_long_lines"
 242
 243 // Don't change Firefox accounts/WebChannels settings
 244 // https://dxr.mozilla.org/mozilla-beta/source/services/fxaccounts/FxAccountsConfig.jsm
 245 // https://mozilla-services.readthedocs.io/en/latest/howtos/run-fxa.html
 246 "webchannel.allowObject.urlWhitelist"
 247
 248 // Don't change slow startup detection (UI)
 249 "browser.slowStartup.notificationDisabled"
 250 "browser.slowStartup.maxSamples"
 251 "browser.slowStartup.samples"
 252
 253 // Don't hide "know your rights" infobar (UI)
 254 "browser.rights.3.shown"
 255
 256 // Don't change browser startup/homepage/welcome page settings (UI)
 257 "browser.startup.homepage_override.mstone"
 258 "startup.homepage_welcome_url"
 259 "startup.homepage_welcome_url.additional"
 260 "startup.homepage_override_url" // what's new page after updates
 261 "browser.laterrun.enabled"
 262 "browser.startup.page"
 263
 264 // Don't change tab-related warnings settings (UI)
 265 "browser.tabs.warnOnClose"
 266 "browser.tabs.warnOnCloseOtherTabs"
 267 "browser.tabs.warnOnOpen"
 268
 269 // Don't change redirection limit, default is 20 redirects (Network)
 270 "network.http.redirection-limit"
 271
 272 // don't change backspace key action (0 = previous page, 1 = scroll up, 2 = do nothing) (UI)
 273 "browser.backspace_action"
 274
 275 // Don't change ctrl-tab previews options (UI)
 276 "browser.ctrlTab.previews"
 277
 278 // Don't change spellchecking controls options (UI)
 279 "layout.spellcheckDefault"
 280
 281 // Don't change URL bar selection behaviour (UI)
 282 "browser.urlbar.clickSelectsAll"
 283 "browser.urlbar.doubleClickSelectsAll"
 284
 285 // Don't change settings for new tab position in tab bar (UI)
 286 "browser.tabs.insertRelatedAfterCurrent"
 287
 288 // Don't change setting for switching back to parent tab on tab close (UI)
 289 "browser.tabs.selectOwnerOnClose"
 290
 291 // Don't change behaviour for switching to new tabs when they are opened (UI)
 292 "browser.tabs.loadInBackground"
 293
 294 // Don't change default setting for console warnings about non-e10s-compatible addons (Development)
 295 "dom.ipc.shims.enabledWarnings"
 296
 297 // Don't change sandboxing level settings
 298 // https://wiki.mozilla.org/Sandbox
 299 "security.sandbox.content.level"
 300 "dom.ipc.plugins.sandbox-level.default"
 301 "dom.ipc.plugins.sandbox-level.flash"
 302
 303 // Don't touch other UI options
 304 "ui.key.accelKey"
 305 "ui.key.chromeAccess"
 306 "ui.key.contentAccess"
 307 "ui.key.generalAccessKey"
 308 "ui.key.menuAccessKey"
 309 "ui.key.menuAccessKeyFocuses"
 310 "ui.key.saveLink.shift"
 311 "ui.menu.incremental_search.timeout"
 312 "ui.mouse.radius.bottommm"
 313 "ui.mouse.radius.enabled"
 314 "ui.mouse.radius.inputSource.touchOnly"
 315 "ui.mouse.radius.leftmm"
 316 "ui.mouse.radius.rightmm"
 317 "ui.mouse.radius.topmm"
 318 "ui.mouse.radius.visitedWeight"
 319 "ui.osk.debug.keyboardDisplayReason"
 320 "ui.osk.detect_physical_keyboard"
 321 "ui.osk.enabled"
 322 "ui.osk.on_screen_keyboard_path"
 323 "ui.osk.require_win10"
 324 "ui.panel.default_level_parent"
 325 "ui.plugin.cancel_composition_at_input_source_changed"
 326 "ui.popup.disable_autohide"
 327 "ui.scrollToClick"
 328 "ui.touch_activation.delay_ms"
 329 "ui.touch_activation.duration_ms"
 330 "ui.touch.radius.bottommm"
 331 "ui.touch.radius.enabled"
 332 "ui.touch.radius.leftmm"
 333 "ui.touch.radius.rightmm"
 334 "ui.touch.radius.topmm"
 335 "ui.touch.radius.visitedWeight"
 336 "ui.trackpoint_hack.enabled"
 337 "ui.use_activity_cursor"
 338 "ui.use_native_colors"
 339 "ui.window_class_override"
 340
 341 // Don't touch WebGL settings, WebGL is disabled.
 342 "webgl.allow-fb-invalidation"
 343 "webgl.angle.force-d3d11"
 344 "webgl.angle.force-warp"
 345 "webgl.angle.try-d3d11"
 346 "webgl.bypass-shader-validation"
 347 "webgl.can-lose-context-in-foreground"
 348 "webgl.default-no-alpha"
 349 "webgl.disable-angle"
 350 "webgl.disable-DOM-blit-uploads"
 351 "webgl.disable-wgl"
 352 "webgl.dxgl.enabled"
 353 "webgl.dxgl.needs-finish"
 354 "webgl.enable-draft-extensions"
 355 "webgl.enable-privileged-extensions"
 356 "webgl.enable-webgl2"
 357 "webgl.force-enabled"
 358 "webgl.force-index-validation"
 359 "webgl.force-layers-readback"
 360 "webgl.lose-context-on-memory-pressure"
 361 "webgl.max-acceptable-fb-status-invals"
 362 "webgl.max-perf-warnings"
 363 "webgl.max-warnings-per-context"
 364 "webgl.msaa-force"
 365 "webgl.prefer-16bpp"
 366 "webgl.renderer-string-override"
 367 "webgl.restore-context-when-visible"
 368 "webgl.vendor-string-override"
 369 "webgl.webgl2-compat-mode"
 370
 371 // Don't touch predictive service (Necko) settings, Necko is disabled
 372 "network.predictor.cleaned-up"
 373 "network.predictor.enable-hover-on-ssl"
 374 "network.predictor.enable-prefetch"
 375 "network.predictor.max-resources-per-entry"
 376 "network.predictor.max-uri-length"
 377 "network.predictor.page-degradation.day"
 378 "network.predictor.page-degradation.max"
 379 "network.predictor.page-degradation.month"
 380 "network.predictor.page-degradation.week"
 381 "network.predictor.page-degradation.year"
 382 "network.predictor.preconnect-min-confidence"
 383 "network.predictor.prefetch-force-valid-for"
 384 "network.predictor.prefetch-min-confidence"
 385 "network.predictor.prefetch-rolling-load-count"
 386 "network.predictor.preresolve-min-confidence"
 387 "network.predictor.redirect-likely-confidence"
 388 "network.predictor.subresource-degradation.day"
 389 "network.predictor.subresource-degradation.max"
 390 "network.predictor.subresource-degradation.month"
 391 "network.predictor.subresource-degradation.week"
 392 "network.predictor.subresource-degradation.year"
 393
 394 // Don't alter HTTP/2.0 support
 395 // http://blog.scottlogic.com/2014/11/07/http-2-a-quick-look.html
 396 // https://queue.acm.org/detail.cfm?id=2716278
 397 // https://http2.github.io/faq/
 398 // https://github.com/ghacksuserjs/ghacks-user.js/issues/107
 399 "network.http.spdy.enabled.http2"
 400
 401 // Don't try to prevent autorefresh of pages (meta http-equiv="refresh")
 402 "accessibility.blockautorefresh"
 403
 404 // Number of suggested history/bookmarks items in the URL bar dropdown
 405 // https://www.labnol.org/software/browsers/prevent-firefox-showing-bookmarks-address-location-bar/3636/
 406 // http://kb.mozillazine.org/Browser.urlbar.maxRichResults
 407 // When browser.urlbar.autocomplete.enabled is false, the dropdown is disabled
 408 // Setting the preference to 0 effectively disables the Location Bar dropdown entirely
 409 "browser.urlbar.maxRichResults"
 410
 411
 412 // privacy.clearOnShutdown.passwords was removed in Firefox 42
 413 // https://hg.mozilla.org/releases/mozilla-esr45/rev/fb4f42bbeb01
 414 "privacy.clearOnShutdown.passwords"
 415
 416 // Old Firefox 3.1a2 pref
 417 // https://hg.mozilla.org/mozilla-central/rev/adb1ef78dd21
 418 "browser.sessionstore.enabled"
 419
 420 // PREF: Enable Information Bar for Outdated Plugins (Firefox < 33)
 421 // http://forums.mozillazine.org/viewtopic.php?f=8&t=2490287
 422 // https://hg.mozilla.org/mozilla-central/rev/189803
 423 "plugins.hide_infobar_for_outdated_plugin"
 424
 425 // PREF: Do not store POST data in saved sessions (Firefox < 29)
 426 // https://hg.mozilla.org/mozilla-central/rev/163997
 427 // http://kb.mozillazine.org/Browser.sessionstore.postdata
 428 // relates to CIS 2.5.7
 429 "browser.sessionstore.postdata"
 430
 431 // Force "allow full screen" prompts (UI) (Firefox <42.0a1)
 432 // https://hg.mozilla.org/mozilla-central/rev/253900
 433 "full-screen-api.approval-required"
 434
 435 // Delay in seconds before allowing user to install an addon (UI)
 436 "security.dialog_enable_delay"
 437
 438 // Mouse tweaks (UI)
 439 "mousewheel.acceleration.start"
 440 "mousewheel.acceleration.factor"
 441 "mousewheel.min_line_scroll_amount"
 442
 443 // Force emphasizing second and top-level domains in the URL (Firefox <15)
 444 // http://kb.mozillazine.org/Browser.identity.ssl_domain_display
 445 // https://bugzilla.mozilla.org/show_bug.cgi?id=748385
 446 "browser.identity.ssl_domain_display"
 447
 448 // Prevent DOM from manipulating elements from menu bars, toolbars...
 449 "dom.disable_window_open_feature.menubar"
 450 "dom.disable_window_open_feature.personalbar"
 451 "dom.disable_window_open_feature.scrollbars"
 452 "dom.disable_window_open_feature.toolbar"
 453
 454 // Limit images size in memory (performance)
 455 // http://kb.mozillazine.org/Memory_Leak
 456 "image.mem.surfacecache.max_size_kb"
 457 "image.mem.max_decoded_image_kb"
 458
 459 // PREF: Limit duration for which images are kept in memory (performance) (default=120000)
 460 "image.mem.min_discard_timeout_ms"
 461
 462 // PREF: Limit javascript memory (performance)
 463 // More frequent javascript garbage collector
 464 // http://www.computershowto.pro/2014/05/firefox-memory-and-config-tweaks-to-make-firefox-faster/
 465 "javascript.options.mem.max"
 466 "javascript.options.mem.gc_frequency"
 467
 468 // PREF: Delay in ms between hovering over a menu option with a submenu and the submenu appearing. (performance)
 469 // http://kb.mozillazine.org/Firefox_:_FAQs_:_About%3Aconfig_Entries
 470 "ui.submenuDelay"
 471
 472 // PREF: Lower initial page painting delay (performance)
 473 // Delay after which the page is painted on the display. The default is 250ms, lowering it makes the page appear earlier, but uses more paint cycles and hogs the CPU.
 474 "nglayout.initialpaint.delay"
 475
 476 // Disable "display passwords" button in password manager
 477 "pref.privacy.disable_button.view_passwords"
 478 "pref.privacy.disable_button.view_passwords_exceptions"
 479
 480 // Disable IPv6
 481 "network.dns.disableIPv6"
 482
 483 // PREF: Disable tabs animation (performance) (Firefox < 54)
 484 "browser.tabs.animate"
 485 // PREF: Disable fullscreen transition animation (performance) (Firefox < 54)
 486 "browser.fullscreen.animate"
 487 // PREF: Disable fullscreen/tabs/alerts animations (Firefox >= 54)
 488 // http://hg.mozilla.org/mozilla-central/rev/77760e0b239f
 489 "toolkit.cosmeticAnimations.enabled"
 490
 491 // Hide missing plugin notifications (Flash Player) (Firefox <23)
 492 // https://hg.mozilla.org/mozilla-central/rev/4e55b3a02970
 493 "plugins.hide_infobar_for_missing_plugin"
 494
 495 // Hide missing plugin notifications (Flash Player) (Firefox <35.0a1)
 496 // https://hg.mozilla.org/mozilla-central/rev/206139
 497 "plugins.hideMissingPluginsNotification"
 498 "plugins.notifyMissingFlash"
 499
 500 // PREF: Set Firefox locale to en-US
 501 // http://kb.mozillazine.org/General.useragent.locale
 502 // window.navigator.language is now determined by intl.accept_languages
 503 // https://bugzilla.mozilla.org/show_bug.cgi?id=448743
 504 "general.useragent.locale"
 505
 506 // PREF: Set the default search engine to DuckDuckGo
 507 // https://support.mozilla.org/en-US/questions/948134
 508 // No longer works in Firefox 52+, results in unexpected default search engine
 509 // https://github.com/pyllyukko/user.js/issues/396
 510 user_pref("browser.search.defaultenginename",   "DuckDuckGo");
 511 user_pref("browser.search.order.1",                             "DuckDuckGo");
 512 user_pref("keyword.URL",                                    "https://duckduckgo.com/?q=!+");
 513