In Safari 6, tabs became very wide. I don’t like this new behavior.
Is there a way to get the old, smaller tabs back?
The glims tool - available from http://www.machangout.com - should do the trick to re-slice the tab width to something fixed if you prefer the old look.
Open the zip and place the .bundle file in:
Works for me and SIMBL never gave me any trouble. On the website it says that it's only for Mountain Lion, but it works on my Lion Mac as well.