Most Popular Extensions
Old Addon Manager Requires Restart
Brings back Firefox 3.x Addon Manager
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.
pass-manager Requires Restart
Replace integrated password managers storage with zx2c4's pass (www.passwordstore.org)
Resubmit Requires Restart
(Re)submit multiple messages to a predefined recipient(s)
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.
Filter SubFolders Requires Restart
Applies mail filters to sub folders of an IMAP account, not just the Inbox
BccInfo Requires Restart
Send any additional information to your BCC recipient.
Block unwanted ads.
Color Source Requires Restart
Add syntax highlighting of code in various languages to email messages via context menu.
Check Attachment before Send Requires Restart
Confirms to send a mail with any attachment.
DownloadStudio Firefox Integration Requires Restart
Firefox Integration for DownloadStudio
manoderecha Requires Restart
Assists to setup a chat account for manoderecha
Inbox Cleaner of expired Emails Requires Restart
Moves expired Emails out of your Inbox!
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
Shift Box Requires Restart
Replay your INBOX!
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.
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.
Sets the spell check dictionary based on the first recipient
gTimer Requires Restart
gTimer предназначен для подсчёта времени, проводимого за работой в Firefox.
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.