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.
CloseDeveloper reply by Matt H
Rated 5 out of 5 stars
Need update for Firefox 57!
Unfortunately, it is not possible to support Firefox 57. Mozilla has refused to add the necessary replacement APIs for Web Extensions.
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