Problem: Firefox on Ubuntu is crashing when it encounters flash content. Solution: Uninstall the
Mozilla Firefox 184.108.40.206 on Ubuntu Linux (Dapper Drake) was crashing every time it encountered a page with Macromedia Shockwave or Macromedia Flash. The crash produced this error in the terminal:
[snip] The program 'Gecko' received an X Window System error. This probably reflects a bug in the program. [snip]
A look into the
about:pluginspage in Firefox showed an anomaly: there appeared to be be two plugins handling flash content.
Additionally, trying to use the standalone flash viewer
swfplayeralso resulted in a crash.
Synaptic package manager revealed that several flash plugins were installed. The
libflash0c2library package and two dependants (
libflash-swfplayer, the crashing plugin and application) seemed to be the source of the trouble.
flashplayer-mozillawas also installed.
libflash0c2seems to be the source of the problem, and uninstalling it and its dependants appears to solve this particular flash-Firefox problem.
- Close all Mozilla-family browser windows (Mozilla, Firefox, Galeon, Epiphany, etc.)
libflash0c2using Synaptic package manager or apt.
Bonus: Jim Caya posted another solution in the comments below. You might try either my solution or his and see if it works instead of doing both -- and I'd be interested to hear back from folks on what combinations work or don't work.
- Either the two flash plugins were conflicting or there is a bug in the
libflash0c2library. There are other flash-Firefox and flash-Ubuntu problems involving sound, and solutions can be located on the ubuntuforums.org site.