Nice.

Four stars (one less than five) only because 'Move Tab Hotkeys' seems to offer a broader range of options …

Move tab to the first spot does not work if any cards are pinned.

This plugin works almost perfect for me...would be cool if it could have some kind of animation though.

Great addon!

I truly need an addon like this because I have modified userChrome.css to get multiple rows of tabs with vertical scrolling instead of horizontal scrolling. After this moving tabs using mouse (standard way in Firefox) got broken. So addons like this is the only way for me to move tabs.

Also toolbar buttons for moving tabs would be great not to disturb keyboard and not to interfere with other functions of same key combos.

Also this addon seems not always work correctly with newly opened tabs when used in combination with "Simple Tab Groups" addon. I found out that "Move Tabs" work unstable with tabs I opened since I switched tab group. After I switch tab groups and before I open any tabs "Move Tabs" works correctly. So switching to any other group and back to group of interest is the workaround.
Please try debugging this situation. Thank you!