gmail alert says browser no longer supports
The alert message appears everytime I go back into gmail This browser version is no longer supported. Please upgrade to a supported browser. I checked that Firefox was last updated Feb. 26. So I'm understanding what's going on. thanks
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Hi,
You seem to be on 115 ESR, which may be the latest supported version for your OS. While it still receives security updates (and will get them at least until August 2026), it doesn't get new features and major changes, and the version number doesn't increase. Unfortunately, some websites may decide to stop supporting old Firefox versions like this. I believe the only thing you can do about it is upgrading your system if possible.
I also have this banner appearing across my gmail. However, my firefox says it is updated?!!
Mac OS users on OS X 10.12/10.13/10.14 have been moved to the 115 ESR update channel since your macOS X 10.14 platform no longer is supported (distributionID: mozilla-mac-eol-esr115), current releases require macOS 10.15 as a minimum.
Don't you have access to a mobile device that can run the gMail app or a more recent Firefox version?
Does everything that you use in gMail work for you ? As long as it works then you shouldn't worry although it is annoying, such a banner usually means that they haven't tested gMail in your browser version to guarantee that everything work, it can still stop working in the future.
I tried gMail in 115 and in a very old 78 version and I can open emails, haven't tried to compose and send mails and other features like filters and labels.
ItchyGorilla said
I also have this banner appearing across my gmail. However, my firefox says it is updated?!!
Hi, aren't you on 115 ESR?
Hello
These similar discussions https://connect.mozilla.org/t5/discussions/gmail-says-that-firefox-is-no-longer-a-supported-browser-but/td-p/120277
由 Agent virtuel 於 修改
Here is the updated firefox version. I'm not sure what more to do.
115.33.0esr (64-bit)
由 ItchyGorilla 於 修改
@ItchyGorilla
What operating system are you on?
macOS Mojave Version 10.14.6. Too old?
macOS 10.14 is the same version as the creator of this thread is using, so you can look at my first reply. You can't update beyond Firefox 115 unless you can update to macOS 10.15.
Mac OS users on OS X 10.12/10.13/10.14 have been moved to the 115 ESR update channel since your macOS X 10.14 platform no longer is supported (distributionID: mozilla-mac-eol-esr115), current releases require macOS 10.15 as a minimum.
Thank you everyone for your support, I've decided to scrap GMail and I'm now using icloud mail and finding it fantastic for iMacs. It's so much more user friendly that GMail.
cor-el Moderator Top 10 Contributor
3/23/26, 9:24 AM
@ItchyGorilla
What operating system are you on?
I have High Sierra 10.13.6
Hello
If you wish to try User Agent Switcher https://addons.mozilla.org/firefox/addon/uaswitcher
Below, a test
