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

Kyle Hardin
Kyle Hardin
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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!

Chosen solution

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

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All Replies (3)

philipp
philipp
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Chosen Solution

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

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Note that the update URL is specified in this pref that you can find on the about:config page:

  • app.update.url
Kyle Hardin
Kyle Hardin Question owner
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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!