On Sat, 24 Sep 2016 11:28:48 -0500 Javier Perez pepebuho@gmail.com wrote:
Has anyone had this problem?
I haven't, but I don't lock my screen.
I am using Fedora 24, XFCE ( but I think something similar happened also with KDE. Linux 4.7.4-200 Firefox 48.01
How can I start troubleshooting this?
You could search for the problem or open a bug at
https://bugzilla.mozilla.org/enter_bug.cgi#h=bugForm%7CFirefox
When I searched on "slow response", and sorted by id, latest at top, there were several bugs that looked like possibilities, though none mentioned unlock that I saw.
The other thing is that firefox 49 should be available soon in the Fedora repositories, if not already, and it might fix your problem.