I'm having a similar problem, I was wondering if you can clarify what you did to solve the problem. Right now the adblock chrome crx file is just saving on my desktop, and I'm trying to run it through Chrome but its not working. I know you mentioned redirecting the download to a specific area but I'm having trouble figuring it out.
Any help would be greatly appreciated!
I eventually got tired of dealing with all the extra ads on the internet and went to find AdBlock Plus. When I went to install it, nothing happened. Installed from Chrome's Appstore and it was stuck at "checking." My bf tried to help me find the folder in C\: where it would be installed, and we did manage to find it and manually extract the .rar folder into there, but as soon as a new browser was opened, that file would erase itself. We've tried everything we know, and even asked a few of our more computer savvy friends, but no dice. We don't know what to do, or why it wouldn't be installing. I did disable the security extensions, as well. Still nothing. Does anyone have another idea or another way to approach this?