Since you've already tried general troubleshooting, here are some more specific steps you can take to try and resolve the issue: Use Firefox Troubleshoot Mode to Isolate the Problem This mode temporarily disables extensions, hardware acceleration, and other advanced features. This will help you determine if an add-on is causing the issue. Open the Firefox menu. Go to Help and select Troubleshoot Mode.... Click Restart in the pop-up window to confirm. After Firefox restarts, try browsing the kwv.co.za/kwv-brandy/ page. If the links work now, the issue is likely caused by one of your extensions. You can then restart Firefox normally and disable your extensions one by one to find the culprit.