re-add relevant deprecated items for ESR users (#837)

makes the prefsCleaner scripts useful again for users updating from ESR60 to ESR68

user.js

@@ -1634,11 +1634,130 @@ user_pref("_user.js.parrot", "5000 syntax error: this is an ex-parrot!");
    // user_pref("xpinstall.signatures.required", false); // enforced extension signing (Nightly/ESR)
 
 /*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
-     Documentation denoted as [-]. Items deprecated prior to FF69 have been archived at [1], which
+     Documentation denoted as [-]. Items deprecated prior to FF61 have been archived at [1], which
      also provides a link-clickable, viewer-friendly version of the deprecated bugzilla tickets
      [1] https://github.com/ghacksuserjs/ghacks-user.js/issues/123
 ***/
 user_pref("_user.js.parrot", "9999 syntax error: the parrot's deprecated!");
+/* FF61
+// 0501: disable experiments
+   // [1] https://wiki.mozilla.org/Telemetry/Experiments
+   // [-] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1420908,1450801
+user_pref("experiments.enabled", false);
+user_pref("experiments.manifest.uri", "");
+user_pref("experiments.supported", false);
+user_pref("experiments.activeExperiment", false);
+// 2612: disable remote JAR files being opened, regardless of content type [FF42+]
+   // [1] https://bugzilla.mozilla.org/1173171
+   // [2] https://www.fxsitecompat.com/en-CA/docs/2015/jar-protocol-support-has-been-disabled-by-default/
+   // [-] https://bugzilla.mozilla.org/1427726
+user_pref("network.jar.block-remote-files", true);
+// 2613: disable JAR from opening Unsafe File Types
+   // [-] https://bugzilla.mozilla.org/1427726
+user_pref("network.jar.open-unsafe-types", false);
+// ***/
+/* FF62
+// 1803: disable Java plugin
+   // [-] (part5) https://bugzilla.mozilla.org/1461243
+user_pref("plugin.state.java", 0);
+// ***/
+/* FF63
+// 0205: disable GeoIP-based search results
+   // [NOTE] May not be hidden if Firefox has changed your settings due to your locale
+   // [-] https://bugzilla.mozilla.org/1462015
+user_pref("browser.search.countryCode", "US"); // [HIDDEN PREF]
+// 0301a: disable auto-update checks for Firefox
+   // [SETTING] General>Firefox Updates>Never check for updates
+   // [-] https://bugzilla.mozilla.org/1420514
+   // user_pref("app.update.enabled", false);
+// 0503: disable "Savant" Shield study [FF61+]
+   // [-] https://bugzilla.mozilla.org/1457226
+user_pref("shield.savant.enabled", false);
+// 1031: disable favicons in tabs and new bookmarks - merged into browser.chrome.site_icons
+   // [-] https://bugzilla.mozilla.org/1453751
+   // user_pref("browser.chrome.favicons", false);
+// 2030: disable autoplay of HTML5 media - replaced by media.autoplay.default
+   // This may break video playback on various sites
+   // [-] https://bugzilla.mozilla.org/1470082
+user_pref("media.autoplay.enabled", false);
+// 2704: set cookie lifetime in days (see 2703)
+   // [-] https://bugzilla.mozilla.org/1457170
+   // user_pref("network.cookie.lifetime.days", 90); // [DEFAULT: 90]
+// 5000's: enable "Ctrl+Tab cycles through tabs in recently used order" - replaced by browser.ctrlTab.recentlyUsedOrder
+   // [-] https://bugzilla.mozilla.org/1473595
+   // user_pref("browser.ctrlTab.previews", true);
+// ***/
+/* FF64
+// 0516: disable Onboarding [FF55+]
+   // Onboarding is an interactive tour/setup for new installs/profiles and features. Every time
+   // about:home or about:newtab is opened, the onboarding overlay is injected into that page
+   // [NOTE] Onboarding uses Google Analytics [2], and leaks resource://URIs [3]
+   // [1] https://wiki.mozilla.org/Firefox/Onboarding
+   // [2] https://github.com/mozilla/onboard/commit/db4d6c8726c89a5d6a241c1b1065827b525c5baf
+   // [3] https://bugzilla.mozilla.org/863246#c154
+   // [-] https://bugzilla.mozilla.org/1462415
+user_pref("browser.onboarding.enabled", false);
+// 2608: disable WebIDE ADB extension downloads - both renamed
+   // [1] https://trac.torproject.org/projects/tor/ticket/16222
+   // [-] https://bugzilla.mozilla.org/1491315
+user_pref("devtools.webide.autoinstallADBHelper", false);
+user_pref("devtools.webide.adbAddonURL", "");
+// 2681: disable CSP violation events [FF59+]
+   // [1] https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent
+   // [-] https://bugzilla.mozilla.org/1488165
+user_pref("security.csp.enable_violation_events", false);
+// ***/
+/* FF65
+// 0850a: disable location bar autocomplete and suggestion types
+   // If you enforce any of the suggestion types (see the other 0850a), you MUST enforce 'autocomplete'
+   //   - If *ALL* of the suggestion types are false, 'autocomplete' must also be false
+   //   - If *ANY* of the suggestion types are true, 'autocomplete' must also be true
+   // [-] https://bugzilla.mozilla.org/1502392
+user_pref("browser.urlbar.autocomplete.enabled", false);
+// 0908: remove user & password info when attempting to fix an entered URL (i.e. 0802 is true)
+   // e.g. //user:password@foo -> //user@(prefix)foo(suffix) NOT //user:password@(prefix)foo(suffix)
+   // [-] https://bugzilla.mozilla.org/1510580
+user_pref("browser.fixup.hide_user_pass", true); // [DEFAULT: true]
+// ***/
+/* FF66
+// 0380: disable Browser Error Reporter [FF60+]
+   // [1] https://support.mozilla.org/en-US/kb/firefox-nightly-error-collection
+   // [2] https://firefox-source-docs.mozilla.org/browser/browser/BrowserErrorReporter.html
+   // [-] https://bugzilla.mozilla.org/1509888
+user_pref("browser.chrome.errorReporter.enabled", false);
+user_pref("browser.chrome.errorReporter.submitUrl", "");
+// 0502: disable Mozilla permission to silently opt you into tests
+   // [-] https://bugzilla.mozilla.org/1415625
+user_pref("network.allow-experiments", false);
+// ***/
+/* FF67
+// 2428: enforce DOMHighResTimeStamp API
+   // [WARNING] Required for normalization of timestamps and any timer resolution mitigations
+   // [-] https://bugzilla.mozilla.org/1485264
+user_pref("dom.event.highrestimestamp.enabled", true); // [DEFAULT: true]
+// 5000's: disable CFR [FF64+] - split into two new prefs: *cfr.addons, *cfr.features
+   // [SETTING] General>Browsing>Recommend extensions as you browse
+   // [1] https://support.mozilla.org/en-US/kb/extension-recommendations
+   // [-] https://bugzilla.mozilla.org/1528953
+   // user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr", false);
+// ***/
+/* FF68
+// 0105b: disable Activity Stream Legacy Snippets
+   // [-] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1546190,1540939
+user_pref("browser.newtabpage.activity-stream.disableSnippets", true);
+user_pref("browser.aboutHomeSnippets.updateUrl", "");
+// 0307: disable auto updating of lightweight themes (LWT)
+   // Not to be confused with themes in 0301* + 0302*, which use the FF55+ Theme API
+   // Mozilla plan to convert existing LWTs and remove LWT support in the future, see [1]
+   // [1] https://blog.mozilla.org/addons/2018/09/20/future-themes-here/
+   // [-] (part3b) https://bugzilla.mozilla.org/1525762
+user_pref("lightweightThemes.update.enabled", false);
+// 2682: enable CSP 1.1 experimental hash-source directive [FF29+]
+   // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=855326,883975
+   // [-] https://bugzilla.mozilla.org/1386214
+user_pref("security.csp.experimentalEnabled", true);
+// ***/
+
 /* ESR68.x still uses all the following prefs
 // [NOTE] replace the * with a slash in the line above to re-enable them
 // FF69