Idea I have
It's an extension that allows you to use your voice on any website including when your blogging and on forums. Does this sound like a good idea and does it already exist? It allows you to use your voice in places you cant. Good idea? or no?
I mean voice integration you nkow like where you integrate your voice to type stuff is what I meant
Trying to help: From your question, it's not entirely clear to me what "using my voice" actually refers to in that case. What can I do? Is it simple text input? Can I tell it to click on a link for me? Can I ask it for the meanings of words I do not know and it will tell me?
If you want to sell this, try to make your pitch a bit more clear.
For finding out if your idea is something people would buy, I recommend this book: http://momtestbook.com/ (not affiliated with the book or author in any way)
I mean voice integration you nkow like where you integrate your voice to type stuff is what I meant
When you try to sell this, try to make that more clear. People need to fully understand what you are proposing within just a few words.