Recently new ppa for Firefox was added automatically what is ok and what is related to pull when most users decided to kick snap, and it's ok also (voted my self to stay firefox as .deb)
but right now my firefox was updated to 106 beta. I can live with that right now, but in log term it's not good idea to bring in normal stable channel beta versions.

it is listed as 106.0, which is not a beta version number, and the About info does not mention beta status at all.
Confusing.
The Mozilla team may simply have jumped the gun since iirc 106 is not supposed to be due till next week, unless they decided to go early.
Or someone over there goofed?

I didn't think anything of it, since it was 106.0, without a 'b' or anything, as the betas usually have.

yes indeed, it's not look like beta (there is no b). Mozilla website still offering 105.0.3 as last version. So this ppa is maybe the fastest channel for new releases

They rushed it out before translations being ready...
Workaround is to use the esr version
Edit: actually the 106 estonian jammy translation package exists in repo, it is just not listed in package managers (pkcon & discover)... Downloading and installing as local package works