Learn how to make sure Firefox is the default browser if setting that option didn't work, or it got changed by another program.
If your bookmarks have disappeared, it may be possible to recover them. Learn why bookmarks may seem to be missing and how to get them back.
Firefox has a password management feature to store usernames and passwords for logging in to websites. Learn why logins might not be saved.
If you can't download or save files with Firefox, this article explains the steps to take to fix this problem.
Firefox's autocomplete feature lets you save and reuse text field entries in web forms. If you're no longer able to auto-fill your forms, follow these steps.
This article tells you how to fix issues where Firefox can't save some or all of the settings that you try to change.
If Firefox doesn't remember changes you've made to toolbar customizations or to browser window size or position, this article has solutions.
Learn why images for sites on the New Tab page may not display and how to get them back. This article is for Firefox version 56 and below.
Learn how to restore your home page if a third-party software vendor changes it so that their page always opens when you launch Firefox.