how can I tell firefox that my computer has been upgraded to windows 11.
When I tried to install intuit turbotax it could not install because it kept saying that I have windows 8 or 10 and would not install. When I try to go to Costco it tell me :You don't have permission to access "http://signin.costco.com/e0714dd4-784d-46d6-a278-3e29553483eb/B2C_1A_SSO_WCS_signup_signin_201/oauth2/v2.0/authorize?" on this server.
Reference #18.46182117.1772307163.29b43f85
https://errors.edgesuite.net/18.46182117.1772307163.29b43f85
I had to use Microsoft Edge and all works. I want to keep firefox. PLEASE HELP I did upgrade in the fall to switch to Windows 11. I verified with the system to be sure and all is there.
Edition Windows 11 Home Version 23H2 Installed on 10/04/25 OS build 22631.6199 Experience Windows Feature Experience Pack 1000.22700.1108.0
Device name NORMS-LAPTOP3 Processor 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz 2.42 GHz Installed RAM 8.00 GB (7.65 GB usable) Device ID 49EC7F46-8573-48B5-AE54-BDC4E946868D Product ID 00325-96764-51399-AAOEM System type 64-bit operating system, x64-based processor Pen and touch No pen or touch input is available for this display
Thanks Norman
Valgt løsning
Yes I agree that you are likely for some reason running Firefox in Windows 8 compatibility mode.
The UserAgent you used to post with is Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0 as NT 6.2 is Windows 8.
https://www.minitool.com/news/how-to-run-a-program-in-compatibility-mode.html
Afterwards if you were to check for updates you will likely get served Firefox 140.8.0esr and not the Firefox 148.0 Release. You can get the Firefox 148.0 Release at https://www.firefox.com/download/all/ though make sure you are not running Firefox win Windows 8 compatibility mode first.
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Open the Properties of your Firefox shortcut from the right-click context menu. Check the Compatibility tab and make sure that the compatibility mode option is not selected.
Valgt løsning
Yes I agree that you are likely for some reason running Firefox in Windows 8 compatibility mode.
The UserAgent you used to post with is Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0 as NT 6.2 is Windows 8.
https://www.minitool.com/news/how-to-run-a-program-in-compatibility-mode.html
Afterwards if you were to check for updates you will likely get served Firefox 140.8.0esr and not the Firefox 148.0 Release. You can get the Firefox 148.0 Release at https://www.firefox.com/download/all/ though make sure you are not running Firefox win Windows 8 compatibility mode first.
Ændret af James den
Thank you all for helping me. I did all as recommend and now everything seems to work. Yes it was set for windows 8 compatibility, I also down loaded the new Firefox 148.0 release. I rebooted the computer and all seem great. I didn't want to lose Firefox. Thanks, Norman
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