This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

What URL does Firefox connect to when it self-updates?

  • 3 iimpendulo
  • 2 inale ngxaki
  • 1 view
  • Impendulo yokugqibela ngu Kyle Hardin

more options

I manage workstations for an enterprise and I've noticed that Firefox is unable to update itself automatically or manually from within Firefox; however, I can manually download the Firefox installer from https://www.mozilla.org/en-US/firefox/new/ and apply the latest update with a new installer.

I suspect that our corporate firewall must be blocking whatever URL Firefox is connecting to in order to self-update. Unfortunately I haven't been able to find this URL documented anywhere in order to whitelist it. What URL does Firefox connect to in order to update itself?

Thank you for your time and assistance and have a great Friday!

I manage workstations for an enterprise and I've noticed that Firefox is unable to update itself automatically or manually from within Firefox; however, I can manually download the Firefox installer from https://www.mozilla.org/en-US/firefox/new/ and apply the latest update with a new installer. I suspect that our corporate firewall must be blocking whatever URL Firefox is connecting to in order to self-update. Unfortunately I haven't been able to find this URL documented anywhere in order to whitelist it. What URL does Firefox connect to in order to update itself? Thank you for your time and assistance and have a great Friday!

Isisombulu esikhethiweyo

hi ChillyHellion, https://aus5.mozilla.org is the current server that firefox would need to access for auto-updates.

Funda le mpendulo kwimeko leyo 👍 1

All Replies (3)

more options

Isisombululo esiKhethiweyo

hi ChillyHellion, https://aus5.mozilla.org is the current server that firefox would need to access for auto-updates.

more options

Note that the update URL is specified in this pref that you can find on the about:config page:

  • app.update.url
more options

Thanks @philipp and @cor-el, both of these replies were very helpful. I've whitelisted aus5.mozilla.org and mozilla.org in our firewall which should hopefully allow auto-updates to go through.

Have a great week!