My tabs crash at least once a day. what can I do to prevent that?

Desktop or mobile?

It's a desktop.

OK you should be able to get a list of last crashes recorded, verify if they got submitted, and paste a few here to see what's in there… #Enter ''about:crashes'' in the Firefox address bar and press Enter. A list of Submitted (and Unsubmitted, if any) Crash Reports will appear, similar to the one shown below. #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.) ;[[Image:Fx115aboutcrashes|width=500]] More information and further troubleshooting steps can be found in the [[Firefox crashes - Troubleshoot, prevent and get help fixing crashes]] article.