Hello, Try set your home page through '''about:config''' , go there search for '''browser.startup.homepage''' change its value to: '''about:home''' - default home page<br> '''about:blank''' - blank page<br> '''url''' - a link that you want You also can test if the problem is caused by addon: *[https://support.mozilla.org/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in safe mode] Case the problem dont occur in Safe Mode: *[https://support.mozilla.org/kb/troubleshoot-extensions-themes-to-fix-problems Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems] You can check if this problem are malwares: *[https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware Problems caused by malwares]

Check if there is no user.js file (or prefs.js file). Delete them. Aso, uninstall plugin "Version ... ". Does not look legitimate.

You can check the target line in the Firefox desktop shortcut (right-click: Properties) to make sure that nothing is appended after the path to the Firefox program.