Not really, what they say is, and I quote...
"Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8
The Firefox version 48 release in August 2016 will be the last Firefox version to receive new feature or security updates on OS X systems that are no longer supported by Apple: OS X 10.6, 10.7 and 10.8. Starting with the Firefox version 49 release in September 2016, Firefox is no longer supported on OS X systems below 10.9."
I only posted my info because you said "stopped", which is past-tense, if you had said "will be stopping" you would have been correct.
No doubt about it the writing is on the wall but I'm not going to worry about it for some time yet.