I have never been able to start it on this computer, it crashes everytime. I do have crash reports but I don't know what to do with them,
We're sorry to hear that your Firefox seems to be crashing when you open it. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.
Thanks in advance!
You can find more information and troubleshooting steps in the Firefox crashes - Troubleshoot, prevent and get help fixing crashes article.
I was able to fix it with some research on the Internet by disabling hardware acceleration in Firefox.