The browser i am using is crashing often ,time to time. I have tried all the methods that is recommended but its not working either.
Crash Report ID bp-154d7b47-d623-4c17-b1c5-a394a0210125,
With the first one, try to enter about:config in the URL bar and set security.osclientcerts.autoload = true, then restart the browser.
With the 2nd one, your Intel GPU is crashing. Try to make Firefox running under the Nvidia GPU, it should be better.