False update message
Firefox is showing me a message: "Firefox is critically out of date" under the bookmarks tabs. If i choose "Update Now" button I'm being forwared to this site:
After I pressed "Download Now" it offers me an older version 52.9.0esr.exe (current 61.0.2 (64-bit)).
Under "Help -> About Mozilla Firefox" it is showing me my firefox is up to date. Why is Firefox telling me i have critical version? What could be wrong?
Chosen solution
If you aren't running Vista then your user agent might be modified or you may run Firefox in compatibility mode.
Check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.
For the user agent, see:
- https://support.mozilla.org/en-US/kb/Finding+your+Firefox+version
- https://support.mozilla.org/en-US/kb/websites-say-firefox-outdated-or-incompatible
All Replies (4)
On Windows Vista you can only run Firefox 52.9.0 ESR and not more recent Firefox versions, you can ignore this warning in this case. Current Firefox releases require Windows 7 and later.
Users on Windows XP and Vista have been moved to the Firefox ESR version.
Chosen Solution
If you aren't running Vista then your user agent might be modified or you may run Firefox in compatibility mode.
Check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.
For the user agent, see:
I agree that it looks like you are running the old Firefox 61.0.2 version in Windows Vista compatibility mode after having installed the old 61.0.2 version.
Firefox 64.0 has been the current Release since December 11. https://www.mozilla.org/firefox/releases/
pinjak said
Firefox is showing me a message: "Firefox is critically out of date" under the bookmarks tabs. If i choose "Update Now" button I'm being forwared to this site: https://www.mozilla.org/en-US/firefox/new/?flowId=eee4159d-b25c-4c0f-a70c-eac7cfeb611a&fxVersion=61.0.2&isDefaultBrowser=1&searchEngine=ddg&source=heartbeat&surveyversion=56&syncSetup=1&type=button&updateChannel=release&utm_campaign=YourFirefoxiscriticallyoutofdate.Anupdateisrequiredtostaysecure.&utm_medium=show-heartbeat&utm_source=firefox After I pressed "Download Now" it offers me an older version 52.9.0esr.exe (current 61.0.2 (64-bit)). Under "Help -> About Mozilla Firefox" it is showing me my firefox is up to date. Why is Firefox telling me i have critical version? What could be wrong?
Yes, Firefox was in compatible mode. BIG thank you for help :)