all google sites, gmail in particular, very slow in Firefox Windows 10
Last few weeks, my gmail in particular has been super slow, and often get "can't connect, retry, error 001 or similar. Retry rarely works, sometimes page refresh fixes it but often that's super slow and have to do it more than once to actually get back to gmail. Other sites from google, calendar, voice, contacts also slow but don't use them regularly so not sure of it all.
Internet connection is fine, same as always (speedtest.net). Refreshed Firefox, disabled extensions (same as have had for long time without any issues), went back a version, (128, haven't tried 130 yet). These even created new profiles, so that's not it either.
Only thing I haven't tried, which shouldn't be necessary), would be to totally and completely (is there a utility to do that?), then reinstall.
Opera and Chrome have absolutely NO issues like this so it's got to be a Firefox issue, but I'm at a loss as to what else to fix/try, etc.
I've used and loved Firefox since the Netscape days, and would hate to have to move to something else but for now, since this is SO frustrating, I'm moving to Opera.
Thanks for any suggestions.