Only opens second time

The extension fails to show any webpage when opening it the once but opening a second browser preview tab works. After closing both tabs, again you must open a first tab and then a second tab to view a webpage. This is currently the only way I am able to use the extension.

Reproduce the reported sequence by opening one browser preview tab, then a second, and closing both before repeating it. Trace the extension's browser-preview opening flow to find why the first tab shows no webpage; done means the first tab displays a webpage and reopening after both tabs are closed works normally.

Written by the indexing model from the issue text.