Firefox using google search, the frequency is too fast to be shielded

Use firefox with the google search today data, was identified as robots to gather information was blocked, and why?

 

i have no the problem..

 

If you will keep using toolbar to search, Google will think that you are using softwares and they will temporarily block you.. Always search using www.google.com

 

I encounter that one before.. and i just clear my firefox search history, cache..etc.. then it works normally again..