Have not been able to find the answer to this: Is it possible to construct a search restricted to a specific domain extension, e.g. Canadian sites (.ca)? Thanks.
You could e.g. duplicate the Google plugin (see Window > Plugins & Scanners), edit the copy and change the EngineURL key to:
Very helpful. Thanks.
Great! Works using Duckduckgo as well (Google plugin not working at the moment) and for “deeper” sites as well. I just set up a search set only searching British universities (.ac.uk). Thanks! Would be great if you could include a “only search domains”-window to make this easier and to include more domains, just as the “exclude domains” (which is great by the way).