> > > It even more strengthens my impression than I should first > > play with reconfiguring the kernel. > > I have loaded the new Gentoo system using the kernel from the old one > with no change in Firefox behaviour on https://www.privat24.ua/#login > page: it crashed as was described before. > > So, playing with the kernel configuration will not help. :( >
I think this "This looks like a radeon video driver problem. You could go into a loop of rebuilding xorg, mesa, dev-libs/nss, what-ever and see if things improve" is the best suggestion so far. I would do something like 'emerge -1 xorg-server xorg-drivers @x11-module-rebuild mesa llvm clang' then restart X and try again.

