No problem with 2.0.0.19 nor 3.5.3 versions. Unfortunately, the 3.0.14 when connected to for example youtube displays message that the browser requires flash player (that is present: www-plugins/adobe-flash-10.0.32.18). Installation of it from the browser fails. Manual installation doesn't help. Re-emerging adobe-flash doesn't help. The same problem on two computers with GNOME and XFCE. Both are up-to-date. Reproducible: Always Steps to Reproduce: 1. start firefox 2. connect to youtube 3. try to watch any video
Can you run firefox from a terminal and see if it gives you any helpful hints ?
(In reply to comment #1) > Can you run firefox from a terminal and see if it gives you any helpful hints ? The console was clear :-(