traxium

Btw, when using this PR, "Loading..." at the top of the page is never disappearing. When the page is loaded, it's displayed under the "Loading..." spinner. 

There is a bug (https://github.com/traxium/tabtree/issues/12 and https://github.com/traxium/tabtree/issues/13) that in order to fix it requires rewriting this add-on almost from the beginning. And I've spent several hours reading Firefox source code...

Tab Groups Helper looks much better to me then the native tab groups. The story about tab groups support is that I completely forgot about tab groups existence while was...

#190 >Alt+Shift+I creates a new sibling tab of the current tab. >Alt+Shift+O creates a new child tab of the current tab. I updated the description on AMO in da3fcd7

I use it on Waterfox Classic. I considered porting it to Seamokey but Seamonkey was somewhat different from Firefox in terms of tab management and UI code so there was...

#190 >Alt+Shift+I creates a new sibling tab of the current tab. >Alt+Shift+O creates a new child tab of the current tab. I updated the description on AMO in da3fcd7

@krvkir, Ctrl+Shift+Alt+F focuses the tab search input box (or brings it up when it's hidden).

@Cosolom, yes. But it can't be done soon.

I already explained somewhere why I'm not doing collapsible trees right now but I'll say it again with additional details. Firstly, I want to do collapsible trees very very much....

Yes. [With the release of Firefox 48, extension signing can no longer be disabled in the release and beta channel builds by using a preference.](https://blog.mozilla.org/addons/2016/07/29/extension-signing-availability-of-unbranded-builds/) So since Firefox 48 you...