Cannot Remove an Extension?
This extension may be disguised by some malware or virus and you just installed it via an unknown link.
Then this malware will be stuck in the internet tool to start its malicious activities without your knowledge.

Furthermore, you could download and install this program to perform Clone Disk to perform asector by sector cloning.
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How to Fix Cannot Remove an Extension?
Step 1: Open Chrome and click thethree-doticon >Extensions>Manage Extensions.

Step 2: Locate the extension you want to remove and clickDetails.
From the web address bar, it’s possible for you to record its id.
Step 3: Open File Explorer and go to this location C:\Users\your username\Appdata\Local\Google\Chrome\User Data\Default\Extensions.

Replaceyour usernamewith the real one.
Step 4: Then you could match the folder name with the recorded ID.
Find the right one and delete it.

Then you’re free to go to the web client to test whether the extension has been removed.
To reset Chrome, you’re able to do as follows.
Step 1: Open Chrome and grab the three-dot icon to chooseSettings.
Step 2: ClickReset settingsfrom the left panel and chooseRestore configs to their original defaults > Reset configs.
Then you’ve got the option to see if the extension has been uninstalled.
Alternatively, you’re free to run Microsoft Defender.
Step 1: OpenStart > prefs > Update & Security > Windows Security > Virus & threat protection.
Step 2: ClickScan options > Microsoft Defender Offline scan > Scan now.
Step 1: OpenSettings > Apps > Apps & features.
Step 2: Locate the net surf tool you want to remove and clickUninstall > Uninstall.
Then you candownload and drop in the browserfrom the official source.
After that, the issue about cannot remove an extension has been resolved.