It’s hard to know the exact issue without seeing the screenshot clearly, but Firefox itself is not disappearing from search engines globally. This could be caused by corrupted browser data, a broken search engine configuration, malware/adware, or an extension changing your search settings.
Try these steps first:Restart Firefox
Disable suspicious extensions
Go to Settings → Search and restore the default search engine
Clear cache and cookies
Run Firefox in Troubleshoot Mode
Update Firefox to the latest version
If the problem continues, sharing the screenshot details directly in the thread would help others diagnose it more accurately.
