If you are a Mozilla Firefox user, you may have noticed that after the last update, the browser shows the error message " A website is slowing down your browser " and then slows down significantly. What is interesting is that sometimes you can also encounter this error on YouTube. This problem is not only limited to Windows users but for all Firefox users on all OS platforms. Whether the error occurs on Firefox or YouTube, we have a potential fix for you.
Method 1: Restart Firefox in private mode
If none of the above methods work, you can try this method as a temporary workaround. This includes opening Firefox in safe mode with add-ons disabled. Let's see how..
Step 1: Open Firefox , go to the top right side of the browser, click Open menu (three parallel lines) and select Help .
Step 2 : Next, click Reboot with add-ons disabled .
Step 3: You will now be asked Are you sure you want to disable all add-ons and restart?
Click Restart to confirm the action.
Step 4: On the Firefox Safe Mode prompt that appears, click the Start in Safe Mode button .
Firefox will now restart in Safe Mode with add-ons disabled. You should now be able to browse the web with Firefox at a normal speed.
Method 2: Update Firefox (Create an account and sync with it since all add-ons will be deleted after update)
Step 1: Open Mozilla Firefox browser, go to the three lines ( Open Menu ) on the top right corner of the browser and select Help .
Step 2: Next, click on Troubleshooting Information .
Step 3: In the Troubleshooting Information window that opens, go to the right side of the pane and click on the Refresh Firefox button .
*Note- Before proceeding with the steps above, make sure you create a Firefox account to back up your data, as updating your Firefox will delete all add-ons.
Now restart your Firefox browser and start searching Google without any errors.
Method 3: Change privacy settings
Step 1: Start Firefox and go to the menu (three horizontal lines).
Select options from the menu.
Step 2: In the next window, click Privacy & Security on the left .
Step 3: Now go to the right side, scroll down and select the radio button next to Strict .
*Note- If you have any bs open, you will see another Reload All Tabs button .
Now restart your Firefox browser and try browsing websites. You should no longer see the error.
Method 4: Change hidden Firefox settings
Step 1: Open Mozilla Firefox and type about:config in the address bar and press Enter .
You will now see a message - Caution Proceed .
Below that, click the Accept the risk and continue button .
Step 2: Next , type ipc.processHangMonitor in the search bar.
The result is displayed as dom.ipc.processHangMonitor .
Right-click the toggle bar to change the value to false .
Step 5: Now type dom.ipc.reportProcessHangs in the search bar and click on the toggle bar to change it to false .
Now restart Mozilla Firefox browser and try browsing. You should now be able to browse websites normally.
Method 5: Clear Firefox browsing data
Step 1: Open Mozilla Firefox and click on the Library (Books) icon next to the address bar.
Select History from the list.
Step 2: Next, click Clear New History .
Step 3: In the Delete New History dialog box, select All from the drop-down list at the bottom next to Period to delete .
Now you can select Cookies and Cache in the History section.
You can also select anything else you want to delete.
Press OK to confirm and exit.
*Note- Any selected ones will be permanently removed and cannot be restored. So make your choice carefully.
Now restart the browser and the browser problem should now be resolved.
Method 6: Update your graphics card driver
Sometimes the error due to outdated graphics driver can appear when you switch to Firefox and browse websites that consume graphics power. In such a case, updating the graphics card can help to fix the problem. Let's see how.
Step 1: Right click on Start menu and select Run to start Run command .
Step 2: In the Run command window , type devmgmt.msc in the search box and press Enter to open the Device Manager window .
Step 3: In the Device Manager window, go to Display adapters and expand the section.
Right-click on the graphics driver and select Update driver .
Step 4: In the Update Driver window, click Search automatically for drivers options .
Step 5: Windows will now start detecting all the latest available drivers. If found, Windows will automatically update it to the latest update.
Exit the Device Manager window and restart your computer. Now open Firefox and try browsing the website and the error shouldn't appear again.
Method 7: Check if Firefox video settings are ok
Step 1: Open Firefox and type the following address in the browser address bar:
about:preferences#privacyIn the Privacy & security section , scroll down on the right and in the Permissions section , verify that Prevent access to accessible services Your browser option is selected. If it's not selected, select it to enable the option.
Step 2: Now select the General option on the left and then navigate to the right side of the panel.
Scroll down and in the Performance section, uncheck all options.
Step 4: Increase or decrease the Content Process Limit until you reach the correct settings.
Now try to open websites and see if the problem is solved.
If none of the above methods work, try using a different browser to browse websites.
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