[gentoo-user] Thunderbird 45.0 unreadable fonts

[Nikos Chantziaras]

I upgraded thunderbird-bin from 38.7.0 to 45.0 and all window fonts 
became extremely washed-out, thin and generally unreadable. I then wiped 
the configuration files (mv ~/.thunderbird ~/tb_backup), but got the 
same issue.

I then wiped it again and emerged normal thunderbird (sans "-bin"), same 
issue.

I downgraded to 38.7.0 again, as the issue makes thunderbird virtually 
unusable.

Anyone else with the same problem? I searched a lot, but I didn't find 
any reports for this, let alone a fix.