After upgrade to FF 43.0.4, Yahoo and Hotmail go into a continuous loop

After upgrading to FF 43.0.4, the Yahoo and Hotmail login pages go into a continuous loop, making login impossible. I also get an error saying that the proxy server is refusing connections. Auto-logins to Gmail don't work either, although notifications do work. I can login manually to Gmail, but not Yahoo or Hotmail. Curiously, I can login to Yahoo Japan (manually, that is. X-notifier Autologons [by clicking an account in the X-notifier dropdown listing or sidebar] haven't worked for any major mail service for almost a year now).

I tried manually stopping the reloading, but then the login page doesn't display. I get the proxy error.
I tried turning off the proxy in the FF network settings. Didn't help.
I tried dumping all cache and cookies. Didn't help.
I tried reinstalling X-notifier. Didn't help.
I tried running FF in safe mode. I could then login manually to Yahoo and Hotmail, no problem. So things do work with X-notifier disabled.
I tried using other browsers (without X-notifier installed), and there are no problems logging in.
Is there anything else I could try short of waiting for an X-notifier update? Any ideas anyone?

Running X-notifier 3.5.18 on FF 43.0.4

Gianni1962's picture

Hi tomtinker,

try with the following guide:

Refresh Firefox - reset add-ons and settings
https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-s...

Then reinstall X-Notifier from the official add-on page:
https://addons.mozilla.org/en-US/firefox/addon/xnotifier/

Then add your accounts to X-Notifier.

HTH,
Gianni

Thanks for the tips Gianni.
I finally tracked down the problem to an offending extension - that I had previously disabled, but that somehow got re-enabled without my knowledge - by the name of Hola, a VPN software. Once I disabled Hola, pages were then able to complete loading. And I can now get into my mail again. Don't know if this is a problem with other VPN services or not, but I would recommend other XNotifier users to avoid Hola.