If you have submitted crash reports then please post the IDs of one or more recent crash reports that have a "bp-" prefix:

• bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the Report ID of recent crash reports on the "Help > Troubleshooting Information" page (about:support).

• Click the "All Crash Reports" button on this page to open the about:crashes page and see all crash reports.

If necessary then you can open about: pages via the location/address bar.

See:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter
• https://support.mozilla.org/kb/Mozilla+Crash+Reporter

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Open the Add-ons Manager <Control><Shift> A and disable All of them.

bp-627e4eca-ea80-44df-a8b6-a24422140912 12/09/2014 13:43 bp-ba0091a0-def8-4d88-bd73-ea63c2140904 04/09/2014 10:20 bp-90c0350f-415d-4966-98d1-055e72140904 04/09/2014 07:52 bp-10c51601-457b-4d51-9fd6-bfa9b2140830 30/08/2014 16:25

Most of the crash reports show a problem with the Shockwave Flash plugin.

Try to disable hardware acceleration in Firefox.

• Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
• https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

You can check for problems with current Shockwave Flash plugin versions and try this:

• check for 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)
• disable hardware acceleration in the Flash plugin

See also:

• http://kb.mozillazine.org/Flash#Troubleshooting