How to remove Firefox security lock

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Steps to remove the Firefox security lock: 1. Open the Firefox browser and make sure you are logged in to your account; 2. Click the "three horizontal lines" icon in the upper right corner of the browser to open the menu; 3. In the menu, select "Options" or "Preferences" and so on. This topic provides you with relevant articles, downloads, and course content for you to download and experience for free.