essential addons

by nk23x

30 Add-ons in this Collection

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 263 reviews

334,394 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 1,032 reviews

329,488 users

Allows bidirectional access to Google Calendar

Session Manager by Michael Kraft

Rated 4 out of 5 stars 469 reviews

279,816 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.

EPUBReader by epubreader

Rated 5 out of 5 stars 172 reviews

409,365 users

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

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 190 reviews

157,934 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Torrent Tornado by Oleksandr

Rated 4 out of 5 stars 78 reviews

45,122 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 291 reviews

137,030 users

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

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

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.

YesScript by Jason Barnabe

Rated 4 out of 5 stars 210 reviews

69,434 users

A JavaScript blacklist

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

Rated 4 out of 5 stars 310 reviews

157,960 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!

Remote XUL Manager by Jorge Villalobos

Rated 5 out of 5 stars 36 reviews

76,136 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.

Copy Urls Expert by Kashif Iqbal Khan

Rated 5 out of 5 stars 73 reviews

74,079 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.

Copy As Plain Text by mehtuus

Rated 4 out of 5 stars 59 reviews

21,246 users

Removes formatting from copied text.

Scriptish by Erik Vold, Nils Maier, others

Rated 4 out of 5 stars 118 reviews

59,760 users

The greatest user script engine on the Internet (a fork of Greasemonkey).

Disable Add-on Compatibility Checks by Kris Maglione

Rated 4 out of 5 stars 100 reviews

37,743 users

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