This one can seem very naive or that everybody knows it, yet two years ago this simple trick turned out to be very useful for me.
Open Chrome and press Cmd l. Type
github.com and press Tab. Now enter
vim-colors-solarized or whatever you feel. When you press Enter the url will change to something like this
The same works for other sites like
rubygems.com. If Tab does not change into search mode, probably you have to visit the site as the engine has to be activated.
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