Type about:preferences#content<enter> in the address bar.

On the bottom of the page, find Languages. To its right, press the Choose button. Make sure the correct language and district is selected.

Download Firefox For All languages And Systems {web link}

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: Some software, like Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

You can check the connection settings.

• Tools > Options > Advanced > Network : Connection > Settings
• https://support.mozilla.org/kb/Options+window+-+Advanced+panel

If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

• https://support.mozilla.org/kb/Firefox+cannot+load+websites+but+other+programs+can

Thanks for trying, but nothing changed after trying these fixes. I did find German as the top language selected. First I changed it to English US, but after I rebooted the computer it was back to German. Then I deleted German all together and did not reboot, the setting stayed put but it still brings up websites in German. I do have Vaio Care on this computer, it came with the purchase a couple of years ago, but I don't dare uninstall it since it is part of the Sony package. I never installed any other care programs, but who knows if some other software included it without me being aware of it.

Is the problem with Firefox, or just the website display?

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.

It is the display of the web pages. For instance, I do a search for Google chrome, the first tier of choices comes up in English. I click on one and now the invitation to download appears in German. Or I am on an English website that is asking for a contribution to a new project, I click on their funding page and it comes up in German (with address fields in the European format, so the zip code does not work). I do speak German (born and raised in Austria) so I occasionally visit web sites in German and write e-mails in German. That may have triggered this strange automatic translation. Obviously, I don't need it and I would never ask for it, since I am fluent in the language. I will now go and try your link for the malware. Thanks

It sounds like you need to tell those web pages to use English.

How do I do that? I don't see a place where I can??

I did install and run Malwarebytes and it found nothing. Also have Norton and McAffee installed and they never found anything. I am hesitant to install all kinds of more software unless that is absolutely the last thing I can try. With my very marginal experience, I am afraid of causing more problems than solutions.

You can try to remove the Site Preferences via "Clear Recent History" or only remove the content-prefs.sqlite file to keep the permissions stored in permissions.sqlite.

• clearing "Site Preferences" clears exceptions for cookies, images, pop-up windows, and software installation and exception for password and other website specific data

You can use this button to go to the current Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory:
  Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder
• http://kb.mozillazine.org/Profile_folder_-_Firefox