Note: This post is no longer updated. Please see the version 2.0 post for current details and download links. This post remains because it has a fair bit of information about the macro in general.
Nearly five years ago, I wrote about my simple Keyboard Maestro web search macro that let me search many web sites from anywhere within macOS. While it worked well, it felt a bit cumbersome—I had to scan a pop-up palette of sites, and then press the proper key to select the site I wanted to search (so I had to keep the list relatively short). Then I'd wait for a new prompt to appear, type the search terms, and press Return.
Because of my macro's convoluted interface, I found myself using our own Butler most of the time, as it offers an interface similar to SafariKeywordSearch (which works in Safari as an extension; I was reminded of it due to a recent post by @danmoren on Six Colors). Both it and Butler do keyword searches, so you can type d best home vacuums to search DuckDuckGo for best home vacuums, or gm Tokyo to search Google Maps for Tokyo.
I decided to rewrite my macro to work like those apps do, but with an added feature: I use a number of browsers, and there are times I want my search to run in something other than the default browser. Using my rewritten macro, I can now optionally specify a browser in which to run the search. So when I activate the macro, I can use one of two different formats for the search command:
Both of those searches will search the Apple Movie Store for movies with the keyword disaster; the one on the left will use my default browser (currently Safari); the one on the right will use Edge.