I-Firefox Isithangami Sokwesekwa

I'm using freshly-downloaded Firefox version 102.2 on a brand new laptop (Windows 11 Pro version 21H2), and every single extension is showing a "Installation aborted because the add-on appears to be corrupt" message when I try to install. I have tried checking for updates, quitting and reopening firefox, restarting my computer, refreshing firefox, uninstalling and reinstalling firefox, as well as any and all combinations of those. I've scoured these message boards and nothing is working for me. Please help!

I've been using Dashlane for a long while. It stopped working, so I deleted it to try to solve the problem. When I tried to re-install it, it won't work. I just keep getting an error about it being corrupted. I've restarted the computer, closed Firefox. It's the same. Dashlane tried to trouble shoot with me, but they have not solved it either. It worked on Google Chrome, but I cannot get it to work on Firefox. Firefox is my browser! I need help to get Dashlane installed and working on it.

My installation of 32-bit Firefox 102 had been repeatedly crashing, sometimes for no apparent reason. I decided to download the 64-bit version of Firefox 102, uninstalled the 32-bit version, carried out a standard installed and all this appeared successful. I noticed that I was getting a lot of advertisements and remembered that I had had Ghostery installed as an extension in my 32-bit Firefox. I went to the extensions page, selected Ghostery and asked for it to be added. Shortly after that, I got a message that the installation had been aborted because the extension might be corrupt. I tried again and got the same message. I tried another ad blocker, and got the same message with that one; and tried a third with the same result. What is going on? I haven't changed any settings in Firefox since the standard installation, and the extensions were from the Firefox source, so how can the extensions be corrupt? If it isn't corrupt, why isn't Firefox installing it?

I enjoy Firefox browser, but this morning I found that my add on/ extensions do not work and I found that if I try to add any extension recommended by Firefox I get the message " this cannot be installed the file is corrupt", I don't understand. I have tried a refresh, I have went to the fixes in about.config and no matter this situation doesn't change. please advise. I cant include a screenshot because it will not work.

My firefox is upto date, even re downloaded it and refreshed it. I go to the add on's menu and chose any one, and every one when i download it says "Installation aborted because the add-on appears to be corrupt."

Help please

Regards

Stu