Troubleshoot issues related to add-ons

Sometimes, add-ons can break your settings. This article explains how to troubleshoot issues related to add-ons in Firefox.

How do I know if my problem is related to add-ons?

Here are a few examples of add-ons affecting or breaking Firefox:

  • Your default search has changed unexpectedly.
  • Your home page or browser settings have changed.
  • Changes in behavior when searching or browsing (such as unexpected redirects to a different website or search provider).
  • Unexpected changes on web pages.

How can I fix this problem?

As a first step, you could restart Firefox with add-ons disabled (see Troubleshoot Firefox issues using Safe Mode to learn how). If the issue goes away, see if you can figure out which add-on is causing the problem and either disable or remove the add-on. If you need more help, you can file a question in our support forum to find out more about the issue you're experiencing.

If you're reporting this issue for the first time in the forums

When you create a new question, go to the "Troubleshooting Information" section of the Ask a Question form and click the Share Data button.
If it doesn't automatically gather your information, you can manually copy the data as follows.
  1. Click the Firefox menu button Fx57Menu , click Fx57Help Help and select Troubleshooting Information.
    • The Troubleshooting Information page with the address about:support will open in a new tab.
  2. Click Copy text to clipboard.
  3. Go back to the Ask a Question form and paste the data into the text field under the Troubleshooting Information section.
  4. Complete the form and post your question.

If you have already filed a question on the forum

  1. Go to your support question, which is accessible from your Mozilla Support user profile page.
  2. Click Edit this question on the right sidebar.
  3. Follow the steps in the previous section for using the Share Data button.

How do I avoid this problem?

To make sure that you use add-ons that are safe, install extensions from the Recommended Extensions program. These extensions are thoroughly evaluated by the team for saftey before they receive the Recommended status.

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