no way to configure the addon? where are the options?! "After installing you can configure this extension by clicking Preferences/Options of it in the Add-ons Manager. The buttons represent the order of preference: e.g. if "left tab" is at the top and "last accessed tab" is the second, after closing the current tab it will try to select the left tab, and then the last accessed tab (if there is no tab on the left). Click the up and down icons to modify the order."
nope not true and there's a typo that doesn't make any sense "clicking Preferences/Options of it in the Add-ons Manager." of it in? whats that supposed to mean
new version wont install on ff56 and beta version is bugged such that i cant open the addon manager from the toolbar button have to use bookmark as a workaround
It means "in the Add-ons Manager, this addon's line, click Options." This opens the addons' detail page, and the options are under the description. If the options are not shown, refresh the page. I just tested 2.0rc4 on Firefox 56.0.1, and the addon manager toolbar button works. As a Firefox-Quantum-compatible extension, this extension has no ability to block the browser's built-in features such as the addon manager button.