Why does Firefox 35.0.1 crash regularly on many sites that use javascript image rotation?

Question

Since the latest update to version 35, many sites that use javascript to manipulate images tend to crash firefox and make either the guilty tab or all of firefox close suddenly. (Firefox on Debian 7 Wheezy Linux, all updates current). I use firefox daily for web development and this regression bug is VERY annoying for my workflow. I understand you cannot take every situation into account. I do not have the time to investigate what has made Firefox less stable. I really hope you can fix this performance problem. If I can do anything concrete to help besides jumping into the code, let me know.

Answer 1

'''[https://addons.mozilla.org/en-US/firefox/addon/flashblock/ Flash block]''' {web link}
Never be annoyed by a Flash animation again! Blocks Flash so it
won't get in your way, but if you want to see it, just click on it
If you have problems with current Shockwave Flash plugin versions then check this:
* see if there are updates for your graphics drive drivers
'''https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration'''
* disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
'''https://forums.adobe.com/message/4468493#TemporaryWorkaround'''
* disable hardware acceleration in the Flash plugin
'''https://forums.adobe.com/thread/891337'''
See also:
* '''http://kb.mozillazine.org/Flash#Troubleshooting'''