Idk, looking at the code, it doesn't look like it does much other than preinstall some useful add-ons and also remove some search providers, among Other privacy things - it also Reskins the about page, code wise there's really nothing different - It's like setting privacy to higher than max.

Best to look through the code to see what it does before you use it. Just a brief skim I've noticed that for some reason it disables WebGL. Not sure why, it doesn't specify a reason. It could completely break some websites.

[–] isVeryLoud@lemmy.ca 5 points 1 year ago* (last edited 1 year ago)

WebGL can jeopardize your privacy on some untrusted sites by revealing your hardware specs, allowing sites to fingerprint you easier. The TOR Browser does it for the same reason.

[–] veniasilente@lemm.ee 1 points 1 year ago

Not sure why, it doesn’t specify a reason. It could completely break some websites.

It's 2023 and Firefox still does not have a per-site / per-domain toggle for WebGL, so it's on them. It stays disabled on my end, and if a site requires it I just open a temporary tab in a different profile with WebGL enabled.