The most requested Vertical Tabs will make an appearance in the upcoming Firefox. The feature can now be turned on in Nightly itself without the need to rely on third-party extensions or separate Nightly builds.
I'm in a similar boat. I use Sidebery which has groups of tabs (in addition to nesting them). Would really want something similar built in natively to organize all of them.
Vertical Tabs can now be enabled in Firefox Nightly and are movable to the right side (windowsreport.com) en
The most requested Vertical Tabs will make an appearance in the upcoming Firefox. The feature can now be turned on in Nightly itself without the need to rely on third-party extensions or separate Nightly builds.