Firefox Support Forum

In my location, my only option for internet access is a mobile hotspot with limited data. Consequently, I am always mindful of my data usage when using my laptop. Despite primarily browsing static pages, email, and other low-data activities, I often find my data usage higher than anticipated. The main culprit comes to mind to be videos embedded in news articles. Sometimes, with multiple tabs open, I switch to an inactive tab only to find a video playing. Although I've configured my Firefox preferences not to autoplay videos, it seems that YouTube videos still override these settings.

So, my question is, when a tab is inactive, does Firefox stop all data transfer for that tab in the background? And if not, what are the solutions to stop any background data other than continually closing all tabs?

Also, any suggestions on this topic are appreciated, especially from and to users who also live in remote areas without fiber, DSL, etc.

This is happening near a year and I can't find a way to consistently replicate this issue but;

While Private Mode is open, if I open the Normal Mode, visit some sites then close it, when I reopen the Normal Mode it is restoring the last session.

This wasn't happening when the Private Mode was separated, like umm, it wasn't have it's own icon at the Task Bar.

So far I tried setting these values to false in about:config browser.sessionstore.resume_from_crash toolkit.winRegisterApplicationRestart

but it doesn't help with this problem. It only works if the Firefox actually crashes or closed abruptly like powering off the PC. But doesn't stop it's restoring when done this way.

I was running 8 Windows with about 12 tabs per Window. AND I had it set to Continue Where You Left Off, so that each time I closed and launched FireFox, ALL Windows with ALL Tabs would open. No problem. Easy.

This morning, Firefox crashed and LOST EVERYTHING. Why did it happen? And how do I get them back?

Jev

I have been using the "Restore Previous Session Option" fairly often for years, but within the last few weeks the option is no longer there.

I had tried to use the Settings > Open Previous Windows and Tabs as a workaround, but it doesn't appear to be consistent.

Did something change in a recent update, or is my installation broken somehow? I tried refreshing Firefox but that didn't bring it back.

The article here shows what I am referring to and has a screenshot of where the "Restore Previous Session" option was: https://support.mozilla.org/en-US/kb/restore-previous-session#w_when-session-restore-occurs

[[Knowledge Base Article|https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/gallery/images/2021-05-19-06-31-50-513d15.png]]

Anyone else have this problem? Is my installation broken? And how to fix?

I have Firefox installed on my Windows 11 laptop. When I click on a new tab, I want that new tab to show 4 rows of icons of sites I have visited most frequently like my bank, Amazon, etc. I do not know how to set a new tab to show the 4 rows of icons. These icons show up in Firefox on my Windows 10 desktop computer but not on Windows 11 laptop.

Hi, I have recently update my Win system with everything including Firefox. And now when I open new tab there is the same Firefox icon like always, but when I it is loading new page then its new X. When it is done with loading it changes to OK icon of the dedicated page. Is this X normal? Thank you

When I click a link either form a web page or from an email I get a whole new window rather than a new tab in the existing Firefox window. This new window is stripped back without the usual menu of options at the top. Is this EDGE taking over my life? I have Firefox as my default browser.