Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for Birthday Calendar by Firefox user 083729
Rated 1 out of 5 stars
Hallo, leider mit Thunderbird 136.0.1nicht mehr kompatibel. Hoffe es gibt Ersatz.
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