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Start Firefox 4 in 32-bit Mode For Less RAM Usage

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64 Bit Firefox 4
64 Bit Firefox 4

If you hadn’t noticed yet, Firefox 4 now runs in 64-bit mode by default (at least on Mac anyway). I’ve noticed that Firefox uses up almost double the ram in 64-bit mode compared to when running in 32-bit mode. Also, some plugins (like Silverlight) are not yet compatible with the 64-bit mode of Firefox.

 

Update: running in 32-bit mode will also help with a known problem with Java MIME types not being recognized correctly.

Here’s how to run Firefox 4 in 32-bit mode (by default) on Mac OS X:

  1. Using Finder, navigate to your Applications folder and locate the Firefox app.
  2. Command+Click (or Right-Click if you have a 2+ button mouse) and go to: “Get Info”.
  3. Check the box that says: “Open in 32-bit Mode” and close the Firefox Info box.
  4. Quit and then Relaunch Firefox.
Open Firefox 4 in 32 Bit Mode
Open Firefox 4 in 32 Bit Mode (click to enlarge)

It’s as easy as that!

Note that 64-bit Firefox does run faster than 32-bit Firefox, but you probably wont notice that much of a difference, and you will reap the benefit of less memory usage, which can be crucial if your system is always low on RAM.
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How To: Move Tabs Back Down in Firefox 4

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Firefox 4
Firefox 4

Firefox 4 became official today and i has a new look! If you haven’t updated yet, what are you waiting for?! It is faster and so far I’m loving it! However I know there are people out there who don’t/won’t like the way the Tabs have been moved to the top of the browser. I personally like it, but it’s not for everyone. If you want the tabs back where they used to be, there is an easy fix!

All you have to do is right-click somewhere in the empty space on the main tool bar (I clicked right between the “Awesome Bar” or address box and the search box — see pic below) and a small menu will pop up. On them menu just left-click to uncheck “Tabs on Top” and it will move them back down. Piece of cake!

Move Tabs Back Down In Firefox 4
Move Tabs Back Down In Firefox 4

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