If you have tried to install Mechanize or any gem that requires openssl on Ubuntu or Debian, you may have encountered the following error…

LoadError: no such file to load—openssl

despite the fact that you have installed openssl with “gem install libopenssl-ruby”.

Thanks to this thread, I found out that in order to install openssl, you have to tell ruby how to compile the openssl extension, like this…

cd /ruby-1.8.4/ext/openssl
ruby extconf.rb
make
make install

mouseHole is a personal proxy server written in ruby, allowing you to…

rewrite the web as you view it, altering content and behavior as you browse. Basically, it’s an alternative to Greasemonkey, which does similar things from inside the Firefox web browser.

To get mouseHole up and running, first install the required gems (json and sqlite3) if you don’t already have them installed. I encountered the following issues while installing those gems…

Installing json

lib/json/editor.rb:977:50: ’:’ not followed by identified or operator

The solution is to remove the colon from line 977.

Installing sqlite3

The command for installing the sqlite3 gem is gem install sqlite3-ruby and not gem install sqlite3.

Lastly, if you are running Debian or Ubuntu, visit http://localhost:3704 instead of http://127.0.0.1:3704 after starting mouseHole.