Figured I’d share this out so I can find it faster in the future if I need to switch PCs around. On the latest versions of Firefox, Google services seem to run into an issue where if you open things like Gmail, it’ll work for a while, then just…stop responding, but ONLY Googles sites stop responding.
Apparently it has to do with a setting in Firefox that’s handling a new TLS 1.3 feature (stuff thats a bit over my head), so I’ll simply share the article with the fix for it if anyone is running into this issue:
Can’t connect to Google since Firefox 100 | Firefox Support Forum | Mozilla Support
Long story short, go into Firefox config by browsing to about:config (click yes to the prompts), then search for security.tls.enable_0rtt_data, which will be set as TRUE. Set it to false using the ying-yang looking icon to the right, and then close/reopen Firefox. Gmail and other Google sites should now work as expected.