Common reasons for Chrome extensions not working include not enabled extensions, too old browser versions, extension conflicts, and permission restrictions. First check whether the extension is disabled, go to chrome://extensions/ to enable the extension; second check whether Chrome is the latest version, or whether the extension is compatible with the current version; then close other extensions to troubleshoot conflicts, turn on one by one to find the source of the conflict and uninstall it; finally check the permission settings to ensure that the permissions required for the extension are enabled, and you can adjust the permissions through the puzzle icon or the extension details page.

There are many reasons why Chrome extensions don't work, common ones may be browser settings issues, conflicts in the extension itself, or system permission restrictions. If you find that the installed extension suddenly fails, don’t worry, check it from the following directions first.

The extension is not enabled or disabled correctly

Sometimes you may think the extension has been installed, but in fact it is disabled by default. Open Chrome's extension management page (enter chrome://extensions/ in the address bar) to see if your extension is in the "deactivated" state. If so, click "Enable".

Additionally, Chrome sometimes automatically disables some extensions after updates, especially those from unofficial store sources. You can check here for prompts, such as "This extension is not downloaded in the Chrome Web Store, which may not be safe". If there is such a prompt, it means that the extension may not work properly.

Browser version is too old or extension is incompatible

If you haven't updated Chrome for a long time and the extension you are using is developed for a new version, compatibility issues may arise. You can go to chrome://settings/help to see if the current browser needs to be updated.

At the same time, you can also go to the extended details page to view the minimum supported Chrome version. If the version does not match, it will be safer to update the browser or replace it with a highly compatible extension.

There is a conflict between extensions

When installing multiple extensions with similar functionality, they may interfere with each other. For example, ad blocking plugins A and B run at the same time may cause neither to load the rule base normally.

The solution is simple:

• Temporarily close all other extensions, keeping only the one you want to test
• Open one by one to find out the extensions that cause conflict
• Uninstall one or replace a similar but conflict-free alternative

Although this method is a bit time-consuming, it can effectively locate problems.

Permission settings prevent extensions from running

Some extensions require access to data from a specific website or obtaining clipboard permissions, etc. If you reject permission requests before, or the browser has set up a strict privacy policy, the extension may not work properly.

You can check this way:

• Click the puzzle icon (extended icon) on the right side of the address bar
• Right-click on the issue's extension → "Always allow running on [site name]"
• Or go to chrome://extensions/ page, find the extension and click "Details" to ensure that the required permissions are enabled

Basically these common reasons. When encountering the situation where the extension cannot be used, it is recommended to check the enable status, browser version, extension conflicts and permission settings in order. In most cases, the problem can be solved quickly.

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