What I think is that maybe since you have tried unistalling, removing the add on, etc on your computer. I think it could be malware (Looking at the WOT scorecard for the Imesh homepage).
A good program to use is Malwarebytes Anti-Malware it is effective at removing all sorts of malware fro your browser and other infections.
WOT scorecard:
http://www.mywot.com/en/scorecard/imesh.com
Malwarebytes Anti-Malware
http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html
I can't seem to get rid of imesh as my default search engine. I have removed it from my computer, removed the toolbar, removed it as an add-on, even tried configuring google as my default search engine under about:config on Mozilla Firefox. However, whenever I try to do a search using the address bar its trying to search using imesh which I don't want. So, I end up having to use the search bar instead, which sucks. Any suggestions?

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