The "search document" field in the pop-up could have a dropdown menu, where the last X (f.i. 5) queries could be shown.
A checkbox to toggle this feature ("Save the search history in the dropdown menu") could be placed in the settings.
We are going to have it on the next release. Note that the extension only stores a query if navigation is requested (search next or previous, or press Enter key which is equal to search next).
The "search document" field in the pop-up could have a dropdown menu, where the last X (f.i. 5) queries could be shown. A checkbox to toggle this feature ("Save the search history in the dropdown menu") could be placed in the settings.