When we have many tabs open in Firefox we get one arrow on each side to scroll through the tabs. What I usually do is to use the mouse (yuck!) to click on those arrows to do the scrolling. How can I achieve the same behavior using the keyboard?
Now I know we can use shortcuts to scroll through tabs by opening them, for example with Ctrl+PgUp and Ctrl+PgDn. However, this implies opening the tab and I do not want to do that. I have multiple groups of tabs with a few of them containing dozens of tabs. When I close Firefox and come back they do not load automatically. So if I'm in a tab in position 57 and want to go to a tab in position 33 by using Ctrl+PgUp and Ctrl+PgDn then all tabs in between are loaded. When I use the arrows instead the tabs do not load and the tab which has the focus is still open although it is not currently showing on the tab bar. In the end, the final tab selection would still have to be done using the mouse but it would be convenient to do the scrolling with the keyboard.