Comment 19 for bug 1855997

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:71.0) Gecko/20100101 Firefox/71.0

Steps to reproduce:

1. Open Firefox and make sure it's the default browser.
2. Open another application that can open links in the default browser. Use that application to open a new tab.
3. Change which window has focus.

Actual results:

Changing which window has focus causes Firefox to crash. (Sometimes the act of opening the link causes the change of focus so the crash happens as part of step 2, but the first several times I tried, I read the whole article and it only crashed when I switched away.)

Expected results:

It shouldn't crash. You should be able to change which window has focus normally.