Closed Keith94 closed 7 years ago
Unfortunately literally none of the functionality this add-on uses is available to WebExtensions yet. And most of it won't ever be. For example to change the tab that gets focused, this add-on must act initially when the tab is closed. All WebExtension APIs are asynchronous, however. Which makes that impossible. Maybe Mozilla adds some APIs that allows a subset of the current functionality; I will look out for this, but it won't happen soon. So it does not look good ...
That's unfortunate, thanks for confirming anyway.
Mozilla announced that starting in Firefox 57, Firefox will no longer support add-ons that are not WebExtensions.
Is it possible to convert Unload Tabs to be a WebExtension, so it can continue working in Firefox 57 and beyond?