How to Fix Firefox Addons not working in Windows 10 [Steps]

What is ‘Firefox Addons not working’ issue in Windows 10/11?

In this post, we are going to discuss on How to fix Firefox Addons not working, Firefox Addons not showing in toolbar in Windows 10/11. You will be guided with easy steps/methods to resolve the issue. Let’s starts the discussion.

‘Firefox Addons not working/ not showing in toolbar’:

Add-ons or extensions are small software module in browser like Mozilla Firefox browser and can help you customize your web browser to meet various browsing requirements and enrich browsing experiences. Firefox browser supports adding external addons which may help you to your browsing experiences and performances.

However, several users reported they faced Firefox Addons not working, Firefox Addons not showing in toolbar issue when they tried to access addons/extensions installed in Mozilla Firefox browser. This issue indicates you are unable to access and use Firefox Addons in your Windows computer for some reasons.

There could be several reasons behind the issue including the disabled addons/extensions in Firefox browser which you are trying to access and use, incorrect system date & time settings, issue with Toolbars and Buttons customization, issue with your Firefox browser and other Windows issues. It is possible to fix the issue with our instructions. Let’s go for the solution.

How to fix Firefox Addons not showing in toolbar in Windows 10/11?

Method 1: Fix Firefox Addons not working with ‘PC Repair Tool’

‘PC Repair Tool’ is easy & quick way to find and fix BSOD errors, DLL errors, EXE errors, problems with programs/applications, malware or viruses issues, system files or registry issues, and other system issues with just few clicks.

Method 2: Re-enable Add-ons in Firefox browser

One possible way to fix the issue is to disable and re-enable Add-ons in Firefox browser in order to fix.

Step 1: Open ‘Mozilla Firefox’ browser in Windows PC and click ‘Menu’ icon in top-right corner to go to ‘Add-ons and themes’. You can also press ‘CTRL + SHIFT + A’ to achieve the same.

Step 2: Now, use the switches next to Add-ons to disable it and after few seconds/minutes, enable the add-ons again.

Step 3: Once done, restart your browser and check if the issue is resolved.

Method 3: Modify System Date & Time Settings

You can also try to fix the issue by checking and modifying system date & time settings in computer.

Step 1: Right-click on ‘Clock and Date’ icon in Taskbar and select ‘Adjust Date and Time’

Step 2: Toggle off switch next to ‘Set time automatically’. Click on the ‘Change’ button to set a date & time manually. Once done, check if the issue is resolved.

Method 4: Disable Extension/Add-on preference

Add-ons/Extension preference on Firefox helps the browser disable extensions that are currently out-of process extensions. However, you can disable extension preference on Firefox in order to fix Firefox Addons not working issue.

Step 1: Open ‘Mozilla Firefox’ browser, type ‘About:Config’ in address bar at top and press ‘Enter’ key to open

Step 2: You will see brief warning regarding changing the advanced configuration. Click ‘Accept the Risk and Continue’ to proceed.

Step 3: Type ‘extensions.webextensions.remote’ in search box at top and use the toggle to change its value to False.

Step 4: Once done, restart your browser and check if the issue is resolved.

Method 5: Avoid using DOM Storage

DOM Storage allows web developers to storage per-session or domain-specific information on your browser. Any issues with DOM Storage might also interrupt the operation of Add-ons in Firefox. You can try disabling DOM Storage in order to fix the issue.

Step 1: Open ‘Firefox’ browser, type ‘about:config’ in address bar at top and hit ‘Enter’ key to open

Step 2: Click ‘Accept the Risk and Continue’ to proceed

Step 3: Type ‘dom.quotaManager.useDOSDevicePathSyntax’ in Search Box and click the toggle to change its value to False. Once done, restart your browser and check if the issue is resolved.

Method 6: Refresh Mozilla Firefox browser

If the issue is still persist, you can try to fix the issue by refreshing Firefox browser and start it from scratch.

Step 1: Open ‘Mozilla Firefox’ browser in Windows PC, click the menu icon in the top-right and select ‘Help > More troubleshooting information’

Step 2: Click ‘Refresh Firefox’ button to reset it and choose ‘Refresh Firefox’ when promoted for confirmation. Once finished, restart your browser and check if the issue is resolved.

Method 7: Update or reinstall Firefox

 Also, you can try to fix the issue by updating or reinstalling Firefox browser in computer.

Step 1: To update Firefox browser, open Firefox browser, click ‘Menu’ and click ‘Help > About Firefox’. Firefox should automatically start looking for any new updates and install them and once done, restart Firefox browser and check if the issue is resolved.

Step 2: If not, open ‘Control Panel’ in Windows PC via Windows Search Box and go to ‘Uninstall a Program > Programs & Features’, find and right-click on Firefox browser and select ’Uninstall’ to uninstall it and after that, restart your computer. After restart, download and reinstall Firefox browser in your computer and check if the issue is resolved.

Conclusion  

I am sure this post helped you on How to fix Firefox Addons not working, Firefox Addons not showing in toolbar in Windows 10/11 with several easy steps/methods. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.