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Add extra features and styles to make Firefox for Android your own.
CloseReview for TB Change From and Fcc on Compose Extension by ciarpameria
Rated 5 out of 5 stars
Sadly, it's unmantained. If you look for an excellent alternative for changing Fcc on Compose, you can look here: https://addons.mozilla.org/en-US/thunderbird/addon/2561
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