essential addons

by nk23x

30 Add-ons in this Collection

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 277 reviews

224,943 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 951 reviews

325,381 users

Allows bidirectional access to Google Calendar

EPUBReader by epubreader

Rated 4 out of 5 stars 215 reviews

273,467 users

With EPUBReader you can read ePub files just in Firefox. No additional software needed!

Session Manager by Michael Kraft

Rated 4 out of 5 stars 489 reviews

243,694 users

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 196 reviews

138,854 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Theme Font & Size Changer by Baris Derin, Access Firefox Project

Rated 5 out of 5 stars 188 reviews

97,407 users

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Torrent Tornado by Oleksandr

Rated 4 out of 5 stars 103 reviews

38,927 users

A Torrent Client for Firefox and SeaMonkey, runs everywhere, created in pure JavaScript without binary software!

Screengrab (fix version) by Oleksandr

Rated 5 out of 5 stars 265 reviews

101,202 users

Screengrab! saves webpages as images.
0.99 released!
New features: upload to internet

Mozilla Archive Format, with MHT and Faithful Save by Christopher Ottley, Paolo Amadini

Rated 4 out of 5 stars 263 reviews

106,656 users

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

YesScript by Jason Barnabe

Rated 4 out of 5 stars 216 reviews

51,858 users

A JavaScript blacklist

Remote XUL Manager by Jorge Villalobos

Rated 5 out of 5 stars 34 reviews

94,625 users

Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.

Form History Control by Stephan Mahieu

Rated 5 out of 5 stars 93 reviews

18,710 users

Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.

Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.

Control for which webpage form history is saved or not.

Copy Urls Expert by Kashif Iqbal Khan

Rated 5 out of 5 stars 77 reviews

14,078 users

Copy multiple urls (links) to clipboard. Provides options to copy urls of all opened tabs and urls in selected text. You can customize the format of copied urls. You can also open multiple links from clipboard.

Disable Add-on Compatibility Checks by Kris Maglione

Rated 4 out of 5 stars 114 reviews

38,742 users

Reinstates the extensions.checkCompatibility preference without respect to the current application version.

Copy As Plain Text by mehtuus

Rated 4 out of 5 stars 58 reviews

12,220 users

Removes formatting from copied text.
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