i wan't firefox uninstalled

This is a Windows issue

Use Settings and look for Apps etc.

Note that if you are indeed using the old EOL Windows 7 then there is really no other web browser that is still updated and supports the EOL Windows 7, 8, 8.1. https://support.mozilla.org/en-US/kb/firefox-users-windows-7-8-and-81-moving-extended-support

Chrome/Chromium based browsers dropped support of Windows 7, 8, 8.1 way back in Jan/Feb of 2023.

The only way you can use a newer web browser whether it be Firefox or another is to either use Windows 10, 11 or replace Windows 7 or dual boot a current Linux distro with Win7.

Sure — if you mean you want Firefox completely uninstalled, go to: Windows Settings → Apps → Installed apps → Mozilla Firefox → ⋯ → Uninstall

Then restart your PC.

Bonjour

For information Firefox release calendar https://whattrainisitnow.com/calendar https://whattrainisitnow.com/release/?version=esr

To complement, these discussions, https://connect.mozilla.org/t5/discussions/firefox-115-41-0-esr-fails-to-display-some-web-pages-correctly/td-p/138971 - https://connect.mozilla.org/t5/firefox-labs/webseite-sein-monaten-nicht-erreichbar/td-p/136998