Ok fellas, I’ve found a way how to remove those annoying “Is Attending”, “Became Fan”, “Joined Group,” and “Now Friends” messages from Facebook feeds!

  1. First of all – USE FIREFOX!
    Spread Firefox Affiliate Button
  2. Install Greasemonkey add-on (need to restart your browser)
    It allows you to customize the way a webpage displays using small bits of JavaScript.
  3. Install this user script

That’s All!

Note that identical solution should work on Chrome, Opera and Safari too, but with a bit more tricky installation:

Read how to run Greasemonkey scripts on Google Chrome
How to run user scripts in Opera browser
Greasekit for Safari