Diễn đàn hỗ trợ Firefox

I have an old version of firefox (3.6.9) that is required for compatibility with our ancient ad trafficking system. My whole department uses it along with the Mac OS El Capitan 10.11.6. No one else has any problem with it, but I do. It crashes on startup-every single time. I've done a clean install multiple times, I've booted up in safe mode, I've deleted all preferences and profiles multiple times, and nothing will fix it.

I got into the Application support folder to find the crash report and there is no Firefox folder in application support at all. Could this be part of the problem? Is the install not working properly for some reason?

I've read about compatibility issues with google analytics as well as with Suitcase font management and I have to use Chrome for our email system and still have Suitcase Fusion installed though I no longer use it. Could either one of these cause an issue with the older version of Firefox?

Can someone please help me with this?

can't open firefox without crash report window opening. Tried safe mode and refresh and nothing worked

Crash ID. Crash ID: bp-42093b5f-44fa-4c6a-bfff-32a810181109

Firefox does not open and show the crash message also in safe mode. I try to remove firefox and to upload a new one, but i had the same result Identificativo crash: bp-7914a403-25a4-4d19-a7eb-2df4b0181028 I need help!