HTitle (discontinued) Requires Restart
Hide title bar if window is maximized.
This add-on has been discontinued!
Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.
Restores the default image style used for top-level images in previous versions of Firefox.
Right Links Requires Restart
This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.
Simple Locale Switcher Requires Restart
An easier management of the user interface language
Select link's text just like a regular text (like in Opera'12 browser) - Select like a Boss ;)
lolifox - Fierr MOD Requires Restart
Replaces the error page with a lolifox appearance with additional features.
Xclear Requires Restart
Safari-like icons in the URL, search and find fields to clear their contents.
TrayHotKey Requires Restart
Sync engine for Stylish with backup / restore facility.
中止ボタンがしいたけに見えて困る Requires Restart
Huh, you said the stop button looks like shiitake? No way, you must be tired.
Fierr Requires Restart
Replaces the error page with a more stylish appearance with additional features.
Browser Backgrounds Requires Restart
Browser Backgrounds is the new Firefox extension that lets you install backgrounds directly on your browser.
Manage your installed personas (lightweight themes).
In the DOM Inspector,quickly navigate to the any elements
Edit Bookmark Plus Requires Restart
Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.
Replacement of OpenBook addon
Linkification Requires Restart
Converts text links into genuine, clickable links...
Web reader for wide screens and long documents. Read with pleasure in attractive layouts.
MinimizeToTray revived Requires Restart
Minimizes windows into the system tray.
bosskey Requires Restart
Add Boss Key, Minimize/Close to tray and memory auto cleaning to Firefox.
Moves Edit > Preferences to Tools > Options…