Most Popular Extensions

Subscribe

Old Addon Manager Requires Restart

Brings back Firefox 3.x Addon Manager

Rated 5 out of 5 stars (1)
52 users

Posting Style Enforcer Requires Restart

Automatically converts top-posted messages to use bottom-positng or vice versa. Interleaved posts are left alone. Detects automatically added text and supports a per-contact list of exceptions.

Rated 5 out of 5 stars (3)
52 users

pass-manager Requires Restart

Replace integrated password managers storage with zx2c4's pass (www.passwordstore.org)

Rated 3 out of 5 stars (1)
51 users

Resubmit Requires Restart

(Re)submit multiple messages to a predefined recipient(s)

Not yet rated
51 users

pkrss Requires Restart

pkrss is one rss tools, it embed http://www.pk17s.cn.
contact with google rss feed,join in multi lanauage support,if default panel has no feed,your can search some feed by keyword in topbar.

Rated 2 out of 5 stars (4)
51 users

Filter SubFolders Requires Restart

Applies mail filters to sub folders of an IMAP account, not just the Inbox

Rated 5 out of 5 stars (3)
51 users

BccInfo Requires Restart

Send any additional information to your BCC recipient.

Rated 2 out of 5 stars (2)
50 users

Netlux Adblocker

Block unwanted ads.

Not yet rated
49 users

Color Source Requires Restart

Add syntax highlighting of code in various languages to email messages via context menu.

Rated 5 out of 5 stars (2)
49 users

Check Attachment before Send Requires Restart

Confirms to send a mail with any attachment.

Not yet rated
48 users

DownloadStudio Firefox Integration Requires Restart

Firefox Integration for DownloadStudio

Not yet rated
48 users

manoderecha Requires Restart

Assists to setup a chat account for manoderecha

Not yet rated
48 users

Inbox Cleaner of expired Emails Requires Restart

Moves expired Emails out of your Inbox!

Not yet rated
48 users

xultray for gecko 1.9.2 Requires Restart

Show xul application (gecko 1.9.2 based) in system tray. supports Firefox 3.6 / 3.7 , Thunderbird 3.1

Rated 5 out of 5 stars (8)
48 users

Shift Box Requires Restart

Replay your INBOX!

Not yet rated
47 users

Personasizer

Personasizer allows you to expose more of your persona's header image. Useful for personas that have text or an important part of their content cut off by the browser's navigation elements.

Rated 3 out of 5 stars (6)
47 users

Custom Alarms Requires Restart

Customize the reminder dropdown in Sunbird and Lightning's event and task dialog.

To configure this extension, open the addon preferences from the addons manager.

Rated 4 out of 5 stars (3)
47 users

Dictionary for recipient

Sets the spell check dictionary based on the first recipient

Not yet rated
46 users

gTimer Requires Restart

gTimer предназначен для подсчёта времени, проводимого за работой в Firefox.

Rated 1 out of 5 stars (1)
46 users

arXiv Requires Restart

Adds direct links to the article PDF and BibTeX information to arXiv email listings. BibTeX information can be used in reference managers such as JabRef by Copy & Paste.

Rated 4 out of 5 stars (2)
46 users