You will only be getting Firefox 115.X.x esr updates for security and or stability fixes. Firefox 116.0 and later requires Windows 10, 11 to run so you are not getting updates to current versions like Fx 138.0.1 and Fx 128.10.0esr.

https://support.mozilla.org/en-US/kb/firefox-users-windows-7-8-and-81-moving-extended-support

The older Firefox 115 ESR currently at Fx 115.23.0esr will be updated till Fx 115.27.0esr in August unless Mozilla extends updates again.

From time to time, a website might tell you that you need to update to continue using the site. This is not a message from Firefox. If you see that, please let us know what the message says and we might be able to suggest a workaround.