Anyone else experiencing Firefox 91 crashes?

[Linux for blind general discussion]

I have 91 on ArchLinuxARM. Just got it about 2 days ago as I recall. 
Using it right now without any crashes. Sounds like it may be a library 
issue, some sort of incompatibility with the specific versions of 
libraries used in your version of Ubuntu-MATE. Can't say for sure 
though. I do know that when it happens here, it usually comes from an 
incompatibility with a specific library that has a new version that 
hasn't yet been built. Usually the problem goes away in a couple of days 
when the library is rebuilt. Try running firefox from a terminal. That 
will tell you if you have undefined symbols, missing .so files or links 
or something else similar crashing it.

~Kyle