Hi Aman. I'm Greg, here to help you with this.
Try these other methods to allow extensions in Edge In Private browsing:
https://www.tenforums.com/tutorials/166235-allo...
https://winaero.com/enable-extensions-private-m...
https://www.ghacks.net/2018/02/08/how-to-enable...
If none of those work then we need to repair Edge:
I'll give you everything possible to fix Edge so something should work. Even if you've tried a step please do it over exactly as specified and in this order:
- Sign in to make sure your Edge data is sync'd first: https://support.microsoft.com/en-us/microsoft-e...
Then since that sometimes doesn't work, manually back up your Favorites and Passwords as shown here:
https://www.tenforums.com/tutorials/143983-how-...
https://www.groovypost.com/howto/export-passwor...
If you can't open Edge but another browser will open, then go into it's Settings to try to "Import from another Browser" your Edge Favorites so they are at least backed up.
- See if it's enough to Clear Edge cache:
https://pureinfotech.com/clear-cache-cookies-ed...
- You can reset new Edge in Edge Settings > Reset Settings.
- If you can't open Edge or if the Edge Reset doesn't work then go into Windows Settings > Apps > Apps & Features > Microsoft Edge > Modify > Repair.
5 If those don't help then try reinstalling Edge over itself from official download here: https://www.microsoft.com/en-us/edge
- If none of those repairs help try the additional repairs here:
https://support.microsoft.com/en-us/microsoft-e...
https://www.digitaltrends.com/computing/common-...
https://www.windowscentral.com/five-ways-fix-co...
https://techgenix.com/problems-with-edge-browser/
- Go over Windows using this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done: http://answers.microsoft.com/en-us/windows/wiki...
Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues just like this one, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files, and also Step 16 to test a new Local Admin account to replace yours which may be corrupted. Then if necessary continue with the other steps to go over your install most thoroughly.
- If nothing else works then do a Repair Install, by installing Media Creation Tool, open tool and choose to Upgrade Now. This reinstalls Windows while keeping files, programs and most settings in place, is the most stable method to advance to the latest version, and solves most problems. Tutorial here: https://www.tomshardware.com/how-to/fix-windows...
If you want to report this to Edge Developers you can choose the Edge Hub (three dots to right of URL address bar) then Help & Feedback, then Feedback form to fill out. They will not even see it here, as this is a tech forums where mostly volunteers try to help others with their problems.
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