Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
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Choose from thousands of extra features and styles to make Firefox your own.
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UnMHT
UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.
mid
Requires Restart
More than 2000 dictionaries in 270 Kilobyte! Search multiple dictionaries at once!
Thumbnail Zoom Plus
Requires Restart
Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.
Proxy Privacy Ruler
Restrict Proxy by Private Windows, Tabs and Domain List
Gmail Manager-community
Requires Restart
Manage multiple Gmail accounts and receive new mail notifications.
eQuakeAlert!
Requires Restart
Have you ever thought of getting alerts on land disasters like earthquakes, right on your desktop? eQuakeAlert! is the solution for that!
Link Properties Plus
Requires Restart
Provides extended link properties: size of linked file, last modified time, etc.
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.
Flexible Sidebar
Flexible Sidebar allows to change sidebar width by dragging the handles.
Restart Application Button
Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.
Tab Numbers
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).
Certificate Patrol
Requires Restart
Your browser trusts many certification authorities and intermediate sub-authorities quietly, every time you enter an HTTPS web site. This add-on reveals when certificates are updated, so you can ensure it was a legitimate change.
XingClean
Der Spam-Filter für Xing! Entfernt störenden Spam aus der Xing-Timeline und den Gruppen.
Addons Recent Updates
Requires Restart
Show more addons recent updates
InfoLister
Requires Restart
Lists installed add-ons (extensions, themes, plugins). Mozilla does not allow me to publish the version compatible with Firefox 48+, see http://forums.mozillazine.org/viewtopic.php?f=48&t=2084957&p=14715558#p14715558 for details.
DSLR Notifier 2
Updated version of the original DSLR Notifier, created by Ryan Flint, which enables members of Dsl/Broadbandreports.com to keep tabs on their instant messages and updated...
safeSERP
Requires Restart
Prevents Google and Yandex from obfuscating and hijacking links in SERP.
Allows to copy/paste *direct* links from Google/Yandex search results instead of redirects.
Fast Close Tabs
Requires Restart
Closing the window closes the active tab instead of the window.
UxU - UnitTest.XUL
Requires Restart
This is a testing tool for addon developers.
To create your own collections, you must have a Mozilla Add-ons account.
