How does this work in preventing the accidental deletion of a tab? Thanks.

FF60.6 ESR x64 - This addon is a nice attempt to mimick the Lock Tab feature from the old Tab Mix Plus extension, but it's sadly not persistent. When you open FF or reload a page, the lock goes away. Btw, the Protect Tab option would be good to have too.

With a name like "Tabloc" and a the description "Adds Lock Tab button", I am disappointed to find that this extension doesn't actually LOCK tabs so that that cannot be closed.

This extension only prevents the tab from being overwritten when you click a link inside the tab - it causes a new tab to be opened for that tab. That's great, but that's not what I was hoping for an extension with a name like "Tabloc".

"Pin Tab" doesn't work, either, because you can still close pinned tabs.