Important Bug Rated 1 out of 5 stars

After testing out for a long time i come to the conclusion that this Addon has conflict with session restore. And i could reproduce it every time so far. If the Add on is on, some tabs restored will be turned blank and losing is address. It would also not load at the start and require a reload all tabs.

Anyone else have similar problems?

This review is for a previous version of the add-on (0.9.1). 

Even Better with New Version! Rated 5 out of 5 stars

RestartLess! And it finally has the button for List of tabs, so accessing Sync-Tabs would no longer needs to manually input about:sync-tabs.

But Tabs Dragging is not smooth, I dont know why but i will do more test. There is a problem with App Tabs not showing up at first. I have to close them and repin them again.

Another suggestions, could the scroll bar be hide and use something else instead to show there are more Tabs on top or bottom? And possibly the option to allow wider Tabs Height.

This review is for a previous version of the add-on (0.9.1). 

Great but hopes Development Continues Rated 5 out of 5 stars

With Firefox Development teams could care less about vertical tabs. I hope this Add on gets constant development. Chrome has a VERY good vertical tabs implementation. It has higher Height per tabs, which is easier on the eyes, the Close button is also larger. May be get rid of Scrolling Bar and have Up and down arrow at both end to indicate there are more tabs. Also Support of App Tabs although i have no idea how this should be done.
I also wonder if the Tab Bar could takes whole of side like chrome instead of just browser area under the Navigation Bar and Menu.

This review is for a previous version of the add-on (0.8).