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It is being worked on: https://wiki.mozilla.org/WebExtensions/sidebarAction https://wiki.mozilla.org/WebExtensions/sidebarAction
by yoasif_ 10y ago
It is being worked on: https://wiki.mozilla.org/WebExtensions/sidebarAction https://wiki.mozilla.org/WebExtensions/sidebarAction
- iaml 10y agoTree-style tabs requires not only sidebar, but also access to browser interface to hide actual tabs, which AFAIK it won't get with WebExtensions.