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Tabs Menu
Requires Restart
Adds a Tabs menu to the main menu that lets you easily change between tabs.
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
HD Video Downloader
Download every YouTube video you want and you can download them as Full HD MP4, FLV, 3GP, MP3, M4A and AAC formats.
SeaMonkey Vertical Tab Bar
Requires Restart
Tab bar on the side of the window for SeaMonkey.
Youtube Downloader Gold
This extension to download audio and video from popular video hosting YouTube. To download the available formats mp4, webm, mp4a, mp3.
UrlCorrector
Type web addresses always in Latin letters no matter of your current keyboard layout.
Duplicate This Tab
Requires Restart
This add-on provides the much needed feature update of Tab Duplication to Mozilla Browsers. Features Supported include Duplication of Browser Tabs, Detaching Tabs and Merging All Windows.
Process Toggle
Toolbar panel for restarting the application with(out) multiple processes and for changing the maximum number of content processes (this requires Firefox 49 or newer).
NiceReader
Requires Restart
NiceReader is designed for web reading. You can customize font, color, size, background, specify the elements to read, filiter ad elements, filiter ad strings, automaticaly turn page.
Joomla! Admin
Requires Restart
Joomla! Admin brings ease & convenience to your computer/workstation, by providing you with a ready-to-use menu options that balms your repetitive work :) Now, Go to the Administrator page or Duplicate the current tab to a new tab/window in a jiffy!!
Xclear
Requires Restart
Safari-like icons in the URL, search and find fields to clear their contents.
Gmail Manager-community
Requires Restart
Manage multiple Gmail accounts and receive new mail notifications.
TimerFox
Requires Restart
Easily counts down from a predefined number and alarms you when the count has reached zero.
mid
Requires Restart
More than 2000 dictionaries in 270 Kilobyte! Search multiple dictionaries at once!
To create your own collections, you must have a Mozilla Add-ons account.