I'm using Fedora 21 and using Mozilla Firefox, the latest version.
When I had Adobe Flash (flash-plugin) installed, my Computer was freezed at least 4 times in a day, and Gnome shell crashed a lot.
I suspected Adobe flash, and indeed, since I removed it, no single crash and freeze so far (2 weeks).
I very like the Youtube HTML5 player, and I wonder if there is any way to play Facebook videos in HTML5, or something similar.
Any extention or modify.
I believe that the solution isn't depends the operating system, so if you have a solution for Windows, I would like to hear.
I would be really glad to get helped. Thanks in advance.