experimented with some extension, and I wanted to after pressing the button that opens a new tab is pinned. So I decided to open a new tab and change the attribute pinned="true" I think they look like the code getMainWindow().getBrowser().addTab(site.url).setAttribute("pinned", true) It is a bit incorrect solution because I found pinTab() which works fine. But I think that bug and it should be resolved.
Component: Untriaged → Tabbed Browser
QA Contact: untriaged → tabbed.browser
Summary: App tab should always be left → App tab acts incorrectly when setAttribute("pinned", true) is called
You need to use pinTab. setAttribute isn't a supported way to do this.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 7 years ago
Resolution: --- → WONTFIX
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