[mdxn]

There are dozens of Greasemonkey scripts on userscripts.org dating back to 2005 that do exactly this and more (On Chrome, you can use the Tampermonkey extension; On Firefox, it's just called Greasemonkey). No to belittle your work or anything, but why is this interesting or newsworthy?

Also, I suspect that some of the comments here are either fake or staged. However, I'll give them the benefit of the doubt. If my skepticism and critique here are based on misunderstandings, I apologize.

[zaidf]

There are dozens of Greasemonkey scripts on userscripts.org dating back to 2005 that do exactly this and more

You answered your own question: this is kind of different because it is not a greasemonkey script and thus targeted at a different audience.

[dannyr]

Never heard of TamperMonkey before. It looks like you can replicate it there but it's not straightforward. I'd rather use his extension.