The Ahrefs SEO Toolbar stops working after Chrome updates, extension conflicts, or permission changes. Here are the most effective fixes, in order of how often they resolve the issue.
This resolves the majority of cases where the toolbar silently breaks after a Chrome or extension update.
Type chrome://extensions in the address bar.
Click the toggle to disable it. Wait 5 seconds.
Re-enable the extension, then reload the page you were on. The toolbar should work again.
Ahrefs Toolbar regularly updates to stay compatible with the latest browser versions. If your browser is outdated, the extension may break silently.
Chrome: Click the three-dot menu → Help → About Google Chrome. Chrome will check for updates and install them automatically. Relaunch when prompted.
Firefox: Click the three-bar menu → Help → About Firefox. Firefox checks for updates on open and installs them automatically.
Chrome sometimes reverts extension permissions after updates. If the toolbar shows a warning or stops loading on specific sites:
If you see a warning about permissions, click it.
The extension may be set to "On click" instead of "On all sites". Click the Ahrefs icon → the three-dot menu next to it → select Always allow on all sites.
Corrupted stored data can cause the toolbar to show wrong data or fail to load metrics.
Navigate to chrome://extensions in Chrome.
Click the Details button on the Ahrefs SEO Toolbar card.
Scroll down to find Extension storage and click Clear storage. This resets all extension data. If you were signed into Ahrefs, you'll need to sign in again.
Extensions can conflict with each other. Ad blockers (uBlock Origin), VPNs, and other SEO toolbars (SEOquake, MozBar) are the most common culprits.
Go to chrome://extensions and disable all other extensions. Reload Google and check if Ahrefs Toolbar works. If it does, re-enable extensions one by one to identify the conflict.
If none of the above work, a clean reinstall usually resolves persistent issues.
Or go to chrome://extensions → click Remove on the Ahrefs card.
Fully close and reopen Chrome after uninstalling.
Go to the Chrome Web Store, search for Ahrefs SEO Toolbar, and reinstall. See our install guide for details.
If the toolbar loads but shows no DR/UR metrics or backlink data, the issue is account-related rather than a bug: