PUBLIC MARKS from decembre with tags addon & about:config

The hidden Firefox preference :privacy.resistFingerprinting.block_mozAddonManager removes the WebExtensions restriction. Here is how you set it: 1 - Load about:config in the Firefox web browser. You can run a search for privacy.resistFingerprinting.block_mozAddonManager just to make sure it does not exist. It does not in the most recent Firefox Nightly builds at the time of writing. 2 - Right-click in the part of the window that lists the preferences, and select New > Boolean from the context menu. 3 - Name the new Boolean value privacy.resistFingerprinting.block_mozAddonManager. Set its value to true. A value of true means that WebExtensions work normally on Mozilla's website. You can undo the change at any time by setting the preference to false on the about:config page of the browser. Mozilla added the new hidden preference to Firefox 57. It is not available in Firefox 56, and there is no option to introduce it in the browser. Firefox Stable users who run WebExtensions right now need to wait until the browser is updated to version 57 to set the preference and gain the functionality

'about:config' tweaks (To revert changes right-click entry and select 'reset'): - Tab audio icon browser.tabs.showAudioPlayingIcon - Insert related tab after current tab (suggestion: enable / set to 'true') browser.tabs.insertRelatedAfterCurrent - Titlebar browser.tabs.drawInTitlebar - Searchbar: open search results in new tab browser.search.openintab - Reader mode reader.parse-on-load.enabled - Geolocation (suggestion: disable / set to 'false') geo.enabled - Pocket (suggestion: disable / set to 'false') extensions.pocket.enabled - Anti fingerprinting (Caution: browser might behave in unforseen ways!) privacy.resistFingerprinting read: Fingerprinting info at Mozilla Wiki tweaks ***** Suggested ui tweaks ***** - Toolbar modes (suggestion: compact mode) Customize mode > Density > Compact / Normal / Touch - Titlebar modes (suggestion: Firefox titlebar ['application/hamburger button in titlebar' only works in Firefox titlebar]) Customize mode > Title Bar > uncheck checkbox Drag space above tabs toolbar (suggestion: disable drag space ['application/hamburger button in titlebar' works best without drag space]) Customize mode > Drag Space > uncheck checkbox Bookmarks menu button on bookmarks toolbar Customize mode > Toolbars > Bookmarks Toolbar Customize mode > move 'bookmarks menu' button to bookmark toolbars end Downloads button always visible Customize mode > downloads button > click on button and uncheck 'Auto-hide' Searchbar (suggestion: placed after location bar) Customize mode > Search(bar) > move to navigation toolbar Flexible spaces (suggestion: remove spaces after and before location bar) Customize mode > grab and drag flexible space into palette

If you are using Firefox Nightly right now, you may have noticed that the latest update of the web browser disabled all legacy add-ons. Firefox Nightly is the first version of the Firefox web browser that hit version 57, the version of Firefox that drops support for so-called legacy add-ons in favor of WebExtensions.