alt Hacker NewsFrom other comments in this thread though it seems to be stuck on quite old versions of ESR though. Seems like it took until about September 2024 to go from a mid-2020 version (78) to a late-2021 version (91) according to this [1].
I don’t have any first-hand experience but from the comment that linked that blog, and the site itself, it’s not clear whether the browser engine has been updated since…
1. https://www.flypig.co.uk/?to=gecko&list_id=975&list=gecko
Afaik the problem is the lack of embedding API in the Firefox core, so they have to adapt their patches every time they need to update Firefox version.
This is also why you see Chome being used as a core in all kinds of applications and frameworks - AFAIK it has the necessary API for this.