Firefox error

suddenly firefox does not let me access gmail when it loads the page an error message appears which is the following: Argh! This tab crashed… i tried to clear the cache, delete the .mozilla and .cache / mozilla directory i also uninstalled and reinstalled the program but it keeps repeating the error, finally i downloaded the latest version of firefox and that works correctly someone can tell me why

Firefox ESR 78 is not stable and like to crash. You should open a service request in SCC (SUSE customer center) for this issue.

Thank you!