This feature is available on all desktop versions of Mozilla Firefox, including Firefox on Windows 10, macOS, and Linux. You can close as many tabs as you’d like this way, which can also be a handy quick way to manage a colossal list of open tabs. RELATED: The Many Ways Websites Track You OnlineĪfter clicking the arrow, you might be surprised to see all of the trackers and subframes that some websites include in their code.Īnd finally, if you want to close a troublesome tab, select it in the list, then click the “X” button on the far right side of the row. Some sites call upon external websites to provide extra functionality or to send data to advertisement networks, and those can use resources as well. If you see a small black arrow beside any tab in the list, click it to see an expanded list of subframes and trackers in use.

If you see any suspiciously high numbers here, it’s possible that particular site or tab is slowing down your machine. Lately, Ive noticed that on start up the home screen does not display nor does the tray area indicate that its running, but right clicking or looking at task. In this case we’re going to call it Kill Firefox. (Click to Enlarge) Name the shortcut whatever you would like. If I right click the shortcut, I get the option to browse the Internet instead of the open option. Where the part in quotes is the location of taskill.exe, and then immediately after that you put the name of the executable program you want to close with the shortcut.

You’ll usually see the memory usage listed in megabytes (MB), but a gigabyte reading is possible. The tray area at the bottom of my screen does not indicate that Firefox is active. To see how much RAM each tab is using, examine the “Memory” column.

Firefox task manager shortcut