0.19.2017031101

Note:

• This package is unsigned. You need to turn the preference xpinstall.signatures.required to false via about:config, on Aurora, Nightly, or Firefox ESR. You cannot install this into released version Firefox. If you hope to try this on released versions of Firefox, try unbranded builds instead.
• If you install TST from this page, you'll get newer versions by auto updating via Mozilla Add-ons, instead of the author's private website. (The build machine is now dead so I cannot sign to my custom update info hosted on my website for now.)

Changes:

• Works on lately Firefox versions. (Tested on Nightly 55.0a1.)
• Drop support for Firefox 51 and older versions.
• Introduce a new choice "No control" as the position of new child tabs. If you choose the option, new child tabs from links will be opened like Firefox's default behavior.
• Introduce a new choice "Click" as an action to show shrunken/collapsed tab bar.
• Treat child tabs opened by the preference browser.tabs.insertRelatedAfterCurrent=true more correctly.
• Fix broken configuration UI for the "auto hide delay".
• The position of the tab bar is now changable again by drag and drop.
• Collapse the dragged tree while dragging. The experimental "shrink" behavior in the previous release was removed.
• Open new blank tab as next sibling tab correctly, even if the current tab is in a last tree.
• Restore children tabs correctly when a parent tab is restored by "undo close tab" command.
• Fix visual erros in the "Vertigo" skin.
• Avoid fingerprinting by website authors.
• Added Greek translation by Vangelis Skarmoutsos. Thanks!
• Known issue: opened or expanded tabs sometimes stay invisible until you move the mouse cursor on it, due to Firefox 52's bug. This doesn't happen on Firefox 53 and later. Simple workaround is disabling of tab animations by browser.tabs.animate=false in about:config.