Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Learn More

How do I get rid of a split screen, that pops up each time I open Firefox?

more options

I was browsing an NFL teams' website ( I'm sure the site itself is irrelevant ), in Firefox; somehow then wound up with a split screen, after I had logged out of the site, and went to Netflix to look for something to watch instead of a computer screen.

It's still a split screen after hours of trying to fix the problem. I don't recall the exact procedure to get one side out of the window, and until it's gone, I suppose I won't be trying to watch a Netflix movie, and / or TV show.

Anybody have some advice, solution(s), expertise, etc., that will take the split screen down?

I was browsing an NFL teams' website ( I'm sure the site itself is irrelevant ), in Firefox; somehow then wound up with a split screen, after I had logged out of the site, and went to Netflix to look for something to watch instead of a computer screen. It's still a split screen after hours of trying to fix the problem. I don't recall the exact procedure to get one side out of the window, and until it's gone, I suppose I won't be trying to watch a Netflix movie, and / or TV show. Anybody have some advice, solution(s), expertise, etc., that will take the split screen down?

Alle Antworten (2)

more options

Please provide a screenshot. Could it be that you have the 'sidebar' open?


See this support article. How do I create a screenshot of my problem? It is best to use a compressed image type like PNG or JPG to save the screenshot and make sure that you do not exceed a maximum file size of 1 MB.

Then use the Browse .... button below the Post a Reply text box to upload the screenshot.

more options

I also vote for sidebar as the likeliest culprit.

If you use a link or button on a website to add a bookmark, that bookmark generally has the open in sidebar checkbox checked.