You can check for issues caused by a corrupted or incomplete Visual C++ installation that is missing runtime components (Redistributable Packages) required by Firefox, especially VCRUNTIME140_1.dll.

See "Visual Studio 2015, 2017 and 2019":

• https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Thank you - I did uninstall and reinstall Visual Studio. Same issue. Only Firefox is affected. I believe this is related to the Mozilla VPN. I tried it for 7 days but it would never connect for me. So I uninstalled it. The issue I'm having with no Firefox pages loading occured immediately after the Mozilla VPN uninstall

Did you reinstall the latest Redistributable Packages via the link I posted above ?

Thank you very much - that solved it

Hello, I have installed VPN Mozilla after I have received a post of Mozilla but after an upgrade, this software did not run. So i have uninstalled.... I have paid for 6 months. When i go to the Mozilla url and if i want download Mozilla VPN, it is asked for pay again... also unable to have the software. How to do? Sorry for the language mistakes. Thak you.

Thank you

Hello, I have installed VPN Mozilla after I have received a post of Mozilla but after an upgrade, this software did not run. So i have uninstalled.... I have paid for 6 months. When i go to the Mozilla url and if i want download Mozilla VPN, it is asked for pay again... also unable to have the software. How to do? Sorry for the language mistakes. Thak you.

You posted a question about Mozilla VPN in someone else's Firefox support question. You need to post your own question in a new thread (see Mozilla Support rules and guidelines).

Please ask this again in the Mozilla VPN support forum. You can use this link: https://support.mozilla.org/en-US/questions/new/firefox-private-network-vpn/form

I'll close this thread.