Reset Firefox using Troubleshooting Information optionġ. To restore Firefox to default, follow these instructions: This refresh process does not affect your bookmarks, browsing and download history, personal dictionary, opened windows and tabs, cookies, and auto-fill information. The Mozilla reset procedure removes added extensions and themes, website permissions, modified settings, supplementary search engines, information about your downloads, user styles, social features, toolbar adjustments, also plugin settings, DOM storage and security certificate and device preferences. In Firefox, this feature is called “Firefox refresh.” If you use Firefox on a daily basis and you suspect that its settings were modified, browser reset can help you fix the issue. In such situation, Firefox might start to display an excessive amount of ads, cause redirects to suspicious web pages, show bogus warning messages, et cetera. Sometimes people install potentially unwanted or malware-type programs unwillingly, and these tend to modify browser settings without the user’s knowledge. In most cases, browsing-related issues are encountered after changing browser’s settings or installing new programs on the system.

Mozilla Firefox is one of the most popular web browsers today, so there is no surprise that people sometimes encounter certain problems while using it. A guide on how to restore Firefox to default settings

Restore mozilla firefox app