Give me a minute to find my post about this from before with sources to prove this as well as links to the internet archive to show it's true. It continues to surprise me this is questioned in a piracy forum when the whole reason it got taken down was due to copyright related takedown requests.

EDIT: here it is: https://lemmy.blahaj.zone/post/26853791/14683087

Reproduced comment follows:

Magnolia's Twitter Account: https://x.com/Magnolia1234B
Nitter Link: https://nitter.tiekoetter.com/Magnolia1234B

Wikipedia: https://en.wikipedia.org/wiki/Bypass_Paywalls_Clean

It used to be on the official Firefox Extensions repository until DMCA takedown notices made them take it down.

https://web.archive.org/web/20210429215917/https://addons.mozilla.org/en-US/firefox/addon/bypass-paywalls-clean/

It used to be on gitlab until DMCA takedown notices made them take it down.

https://web.archive.org/web/20220320090024/https://gitlab.com/magnolia1234/bypass-paywalls-firefox-clean

It used to be on github until DMCA takedown notices made them take it down.

https://web.archive.org/web/20240611084455/https://github.com/bpc-clone/bypass-paywalls-firefox-clean

It moved to gitflic.ru not because it's sketchy, but because of copyright enforcement.

It's kind of like sci-hub, in a way, it can only actually survive in a country that doesn't respect the US copyright cabal.

That being said, I've never audited the code, but it's open source (MIT-license) and signed by Mozilla as noted on its gitflic page:

PS although the add-on was removed from Mozilla’s add-on store (AMO) (because of DMCA Takedown Notice) it’s still signed and manually checked for security by Mozilla (hence the delay in signing).