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Toolbar Buttons
Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.
Dorando keyconfig Requires Restart
A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)
As of version 2016.2, Custom keys (using custom JavaScript) work again!
Arabic spell-checking dictionary
Arabic spell-checking dictionary for Firefox 3 and Thunderbird 3 from Ayaspell.
United States English Spellchecker
This dictionary is no longer maintained. Use this dictionary instead.
Nextcloud for Filelink Requires Restart
"Nextcloud for Filelink" is an Open Source Thunderbird extension which makes it easy to send large attachments with Thunderbird by uploading them first to a Nextcloud server and by then inserting the link into the body of your email.
DOM Inspector Requires Restart
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
Auto Compress File Requires Restart
Compressor for attachment files. All platforms are supported (Windows, Linux and Macintosh).
Metal Lion Silver Sea Monkey Requires Restart
Metal Lion meets SeaMonkey and makes it shine....
Brazilian Portuguese Dictionary (Former Spelling)
The same spellchecker shipped with the Brazilian version of Firefox, just using the former spelling (which is valid until January 1st 2016).
Emoji Menu Requires Restart
Adds the ability to easily insert emojis into your composed messages in Thunderbird.
German dictionary (de_AT)
German dictionary igerman98 (de_AT, Austria), for Firefox, Thunderbird und Seamonkey.
Noia Fox Requires Restart
Theme for Firefox and Thunderbird
Based on Noia Iconpack by Carlitus (deviantART)
Noia Fox options is here (small icons, square tabs,...).
To create your own collections, you must have a Mozilla Add-ons account.