I'm trying both greasemonkey and Google's Chrome extensions. And found that Chrome seems to be using the same API names as GM. (I seem to be having the same bug...)
Just wondering whether greasemonkey is already a Google Chrome extension?
I copy and paste a post from GreaseMonkey:
There is no greasemonkey extension for google chrome. What actually happened is chromium (the project which google chrome is based) developed it's own extension system and one component of that extension mechanism (probably inspired heavily by greasemonkey in the first place) works in almost exactly the same way (an external javascript interacting with a page purely through it's DOM) as greasemonkey. The chromium system uses a completely different api but effectively does the same thing. This large overlap in purpose and functionality combined with the popularity of greasemonkey on firefox meant they decided to implement the greasemonkey api (the majority of it anyway) natively within chromium. From there they went one step further and had the browser automatically wrap any greasemonkey scripts inside a chromium extension automatically and effectively made greasemonkey scripts a first class citizen.