After I had Chrome install its ABC Spell Cheker into Chrome I noticed that the spell checker shows up for non-google programs as well. If I'm composing an email in my Yahoo email client, for example, and I select some text I've written and right-click, there's ABC Spell Check waiting in the context menu to spell check the text I've selected. Same thing if I'm typing an email in Outlook. Or entering text into the Squarespace editor while I work on a Squarespace website. This is all wonderful, but I'm wondering how Google installed Spell Check in a way that it shows up in the context menu for all these -non-google programs.
Thanks for any info.