Firefox Community Forum

I have the newest firebox version and i have you tube connected to the menu bar and 2 icons for it on the desktop i m not sure what if an addon are cause it to stay in full screen screen mode i do not wan it in full scene mode. i have done everything i know how to do to stop it from full screen please how do i get it ti default always just giving you a sample of what Iam getting just a sample of the size i do not have firefox zoomed it is on 100 percent and not zoomed the sixes is 16 and 14 an no larger.

Is it possible to view the contents of two tabs simultaneously? I have been in many situations where it would be very helpful to view two different web pages side-by-side to more easily make comparisons. Opening a new window and viewing them side-by-side is similar but being able to pick two tabs to view in one browser would be a lot faster and easier to control.

Hello support team,

I would like to inform you that since the last update in firefox 140.0.2 (64-bit) the pages of Proton mail do not load properly.

Logging page is successful Logging in is successful

Starting page isn't loading and redirects to error message. Reloading the page doesn't help.

Thank you for your consideration.

Best regards,

Currently I only have 3 tab groups (private, tabs, sync) available in the iPhone version of Firefox. Are there plans to create tab groups like safari? If they already exist, how do I create a new group?

Ok so I usually choose these option to remember history and from time to time delete Browsing & download history and Temporary cached files and pages.

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2025-06-28-08-45-55-a5277f.png

Note: I have "Open previous window and tabs" ticked in general settings which also has a restore previous session option in the history menu. This brings back previous session with tabs etc as is when I close FF. https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2025-06-28-08-45-51-cf2daf.png

I thought I could automate this on exit but don't think its working right. So I change the option to "use custom settings for history" and tick all three options:

Remember browsing and download history Remember search and form history Clear history when Firefox closes For "Clear history when Firefox closes" I ticked Browsing & download history and Temporary cached files and pages. https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2025-06-28-08-45-43-b10213.png

The issue is the restore session option is missing and FF opens with all previous tabs gone. I am frankly not even sure what else is missing such as cookies, site data etc. Is this meant to work like so?

Yesterday, I had Firefox open and running perfectly fine, and I had forgotten to shut down my laptop before closing it. Today, when I reopened my laptop, the Firefox window that was open instantly closed. I tried opening Firefox again, but it kept opening and closing immediately. It would show that there was an open window of it, but the window itself wouldn't open. It would run in the background but never actually open. I tried uninstalling and reinstalling, but it still did the same thing. Does anyone know a solution to this?

I took a look today and I had 237 MB in cookies! This was after clearing the cache of all files. I've only had this (new) machine a couple months.

Short version: Sites have "cookies" from 200kb to as much as 34MB! For many of the sites over 3MB I have no account and have visited them only briefly.

To be clear, I don't care about the space being used. It's trivial. But what the heck is FFox storing and calling it "cookies"? Last I checked, a site was still limited to 4K size cookies and perhaps 50 per domain. So how are we getting to MB+ sized "cookies" per site? Again, the cache was cleared, so what's left aside from trivial cookie files of <4KB?

Desktop; Windows 11; Firefox 139.0.4 64 bit

Hello dear Mozilla Team.

My Name ist Nico and I have a Problem on my Firefox PC. When im looking Into my search History i have weird Websites Like bcclk.com in there. I have Heard that These Websites are Bad Like a Virus. I reseted my Firefox and still have them.

I Need Help. What can I do?

Thanks for your Help.

Hallo Mein Name ist NIco Büchner.

Ich habe in der letzten Zeit öffters in meiner chronik seiten wie bcclk.com und andere Seiten, welche ich nie geöffnet habe gesehen. Das macht mir etwas angst. Auf dem Foto sehen sie einen Auschnitt meiner Chronik. Ich habe von den Seiten die sie da sehen keine jemals gesucht auch nicht die für E bikes etc. Ich wollte wissen ob diese Seiten schädlich sind oder Sicher. Wenn sie nicht sicher sind wüsste ich gerne wie ich sie entfernen kann.

Danke für ihre Hilfe.