When adobe stopped support for its flash player in linux, it was not just bad news, it was a terrible news as the version then had some serious bugs. One of the common one being the people in the youtube or flash videos appearing in blue color. The blue tint was making everyone in the video like a navi from the movie Avatar.
Another common problem is seeing the flash player crashing in browsers, both firefox and chrome. One solution is provided below.
Make sure you take a backup of the file below before attempting an edit so you can revert to it, incase something fails.
$sudo vi /etc/adobe/mms.cfg #remove the first line and the file should have only the line as shown below. OverrideGPUValidation=true
Now close the browser(s) and test the flash link again. It should not be crashing as often it was earlier at the least.