I like the way this tool automatically integrates with just about every textbox on websites. If ensures that your text entries are spell and grammar checked before submitting. I would recommend it to anyone.
Grammerly is one of my Top 5 must have extensions/tools. The Orange Monkey in an Ugly Human Costume, The USA's POTUS should have been given this 4 years ago. It would have saved him from some worldwide embarrassing tweets.