Add-ons
Miscellaneous
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SyncKolab
Requires Restart
SyncKolab can synchronize your calendar, address book and tasks against an IMAP server in Kolab formats version 1 (vCard/iCal) or version 2 (XML) or turn your Thunderbird/Lightning into a native Kolab Client (http://kolab.org).
Sensitivity Header + SPX
Requires Restart
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
Forked from another add-on developed by ff_bob, added SPX header for Sophos security appliances
Focus Regainer
Requires Restart
Return focus from embedded object back to browser on browser hotkeys pressed.
Add-on Preferences Button
Displays a menu that allows you to open the option/preference window for any add-on that has one.
Extension Auto-Installer
Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.
Addons Manager Hilite
Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Version 3.0 also includes sorting buttons. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.
MoveThrobber
Quitomzilla
Requires Restart
Quitomzilla helps you quit smoking while you surf the web or wait for new emails, showing the cigarettes, money and time you have saved since you quit...
Notification Storage
Requires Restart
Provides the Notification Storage service which is missing from SeaMonkey 2.24-2.32
Copy As Plain Text
QuickNote
Diagnostics for Adblock Plus
Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.
Join-NG
Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
To create your own collections, you must have a Mozilla Add-ons account.
