1. For this to work you have to have mighty Firefox. 
2. Install the Firebug addon (it’s awesome!). Get it here: https://addons.mozilla.org/en-US/firefox/addon/1843
3. After restarting Firefox, go to adwords keyword tool here: https://adwords.google.com/select/KeywordToolExternal
4. Left click on Firebug’s icon (it looks like a bug, duh!) in Firefox’s status bar.
5. Click “Inspect” in the upper left corner of Firebug’s window, then click in the middle of the field that is beneath the line: Enter one keyword or phrase per line:
6. When you click there, some HTML code gets highlighted now down in Firebug’s window. Click where it says width: 300px; height: 3em and change the 3em to something like 10em or whatever you feel comfortable with. Change the 300px too, if you want. The changes happen instantly.
It’s great to have a bigger field when brainstorming and typing several lines of keywords.
Happy Keywording!

Great post. I will have to try this trick. I hate how small some websites make their search boxes. +rep
thank you for sharing.
good post for sharing.
Nice tip buddy , i will sure try it now .I think you have done very nice work . Now i will make more keywords search at one time . Green rep for you .
This is very helpful! Thanks for sharing this with us.
Thanks.
Yes, I don’t really understand why that field is so small in the adwords tool. You’re supposed to type many keywords / key phrases.
This is a GREAT Tip
Thanks!