Task Manager - see what tabs or extensions are slowing down Firefox
Firefox's Task Manager feature lets you see which tabs or extensions are using a lot of memory or energy. To see the Task Manager:
Open the Task Manager
- Click the menu button .
- Click .
Actions within the Task Manager
Hovering over an item in the Task Manager will show more details about that that tab or extension's performance. It will also show an available action in the right column:
- Tabs: Close tabs
- Add-ons: Open the add-on page in a new tab.