hello, this one crash report you've mentioned seems to be triggered ba an addon file. since there are no google results once you search for its id, this may also be malicious. please try these steps: # [[Reset Firefox – easily fix most problems|reset firefox]] (this will keep your bookmarks and passwords) # afterwards go to the firefox menu ≡ > addons > extensions and in case there are still extensions listed there, disable them. # finally run a full scan of your system with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] and [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner] to make sure that adware isn't present in other places of your system as well. [[Troubleshoot Firefox issues caused by malware]]

It works! thank you very much

hi dilla, just to follow-up: do you happen to remember having installed any new software in particular before these crashes started to pop up?