We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.

The crash report is several pages of data. We need the report numbers to see the whole report.

1. Enter about:crashes in the Firefox address bar and press Enter. A list of Submitted/Unsubmitted Crash Reports will appear, similar to the one shown below.
2. Copy the 5 most recent Submitted Report IDs that start with bp- and then go back to your forum question and paste those IDs into the "Post a Reply" box.

Note: If a recent Report ID does not start with bp- click on it to submit the report.

(Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

LinkGaming said

firefox crashes when i start firefox

Hello LinkGaming,

As you are on MacOS 10.15 (Catalina) dev beta 5 19A526h, would you please take a look at this bug report :

https://bugzilla.mozilla.org/show_bug.cgi?id=1570451

If you want to, you could vote to show your interest for that bug report :

https://bugzilla.mozilla.org/page.cgi?id=voting.html

If you have any additional information to add, you can post a comment, but keep it to the point and concise. If you have no additional information but have the same problem : posting "I have the exact same problem" would suffice (and maybe post a link to your thread).

See the section Commenting, especially #4

Jeremy Sanders said

We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash. The crash report is several pages of data. We need the report numbers to see the whole report.

1. Enter about:crashes in the Firefox address bar and press Enter. A list of Submitted/Unsubmitted Crash Reports will appear, similar to the one shown below.
2. Copy the 5 most recent Submitted Report IDs that start with bp- and then go back to your forum question and paste those IDs into the "Post a Reply" box.

Note: If a recent Report ID does not start with bp- click on it to submit the report. (Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

Thank you for your help! More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

i can't access the firefox it crashes

I suspect you have the same problem as https://support.mozilla.org/en-US/questions/1265998

FredMcD said

I suspect you have the same problem as https://support.mozilla.org/en-US/questions/1265998

See the bug report I mentioned.