extension page

[grahamperrin]

Whilst awaiting results, I naturally Control-Tab away from then Control-Tab back to the window where I began the search.

Result: the UI disappears.

I'll prefer an extension page:

• https://developer.mozilla.org/Add-ons/WebExtensions/user_interface/Extension_pages

[canislupaster]

this is expected.. not sure if it should be changed. the background page still preforms the search and stores the state.