User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36

Steps to reproduce:

We opened youtube

Actual results:

Mozilla crashed

Expected results:

It should have opened studio

Hey Umer,
I tried to reproduce this issue on the latest versions of Firefox Nightly 85.0a1 (2020-11-22), beta 84.0b4 and release 83.0 but the site is launched and loaded for me and no crashes occur.

Can you test the issue while in Safe Mode? You can find helpful info here : https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode .
Also a fresh new profile could help. You can find more about creating a new profile here : https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems#w_6-create-a-new-firefox-profile .
If possible, you can test this issue on the nightly build as well. Download the build from : https://www.mozilla.org/en-US/firefox/nightly/all/ .

Hi, would you mind giving us one of the crash IDs from about:crashes (type this in the URL bar) for one of those crashes? Hopefully the date and time is enough for you to find which is which (or maybe they are all the same, and you can just pick one). Thanks!

Marking this as Resolved > Incomplete due to reporter's lack of response.
If the issue reoccurs or still persists feel free to re-open or file a new bug.