Add-ons
Most Popular See all »
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German Dictionary (new Orthography) for spellchecking in Mozilla products200,776 users -
Adds some tools to import and export folders and messages37,039 users -
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.27,214 users -
Australian English Dictionary for Mozilla applications.9,237 users -
Dictionary with Swiss variants of German words for spellchecking in Mozilla products8,947 users
Top Rated See all »
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Use SeaMonkey as a standalone e-mail client. Set up a default browser for links opened from Mail & Newsgroups.317 users
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Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".1,652 users
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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.16 users
Recently Added See all »
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Select sender mail address based on the recipient and reply with the same address21 users
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Lightweight add-on that automatically copies any highlighted text to clipboard.14 users
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With MyAdFilter, free content creators propose you only one ad. Apart from those, as your usual ad-blocker, MyAdFilter disables all ads.11 users -
XDM integration module for Firefox on Linux and Mac1 user
See all 175 extensions in Miscellaneous »
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