this post was submitted on 19 Jun 2025
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A gentle reminder that the Firefox Binary is no longer open source. It is source-available. You license the binary under their own proprietary Terms of Use, which explicitly grants Mozilla to use your data in a manner they seem fit to "operate Firefox".
They say they are using your data for research purposes but they also say they can modify the license at any time.
I wonder if you will get excoriated for this opinion, since I had to respond to people in my last post with an update because people were adamant that Firefox was open source. 😼
There are two "Firefox"s:
The codebase remains open source under the MPL while the binary explicitly, by Mozilla's own admission, is not. They are source available.
From the very brief skim I did of your post, it looks like we're on the same page. I had a few people who don't understand open source licenses come at me in my Lemmy replies when this was first unfolding. Ultimately it's on them to understand their agreements.