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Fix Choppy/Laggy/Jerky Scrolling in Firefox
By greg | August 22, 2009
After making my 637th browser switch today (from Safari back to Firefox), I became slightly irritated with the jerky scrolling in Firefox. I just recently switched to Safari from Firefox, so I don’t know if something changed with the 3.5.2 update (early August) or if I just never noticed it.
The fix is relatively simple, and it worked like a charm (original article found here). I’ll be assuming you’re working with OS X. The fix involves renaming and editing a CSS file. Before you start editing, make sure that Firefox is closed. You may want to open this post in Safari or some other web browser.
First you need to navigate to your Firefox profile. The easiest way to do this would be to use the “Go To Folder” option – Click on your desktop then hit Shift + Command + G or in the menu bar, go to Go -> Go To Folder. Next paste the following into the text field: ~/Library/Application Support/Firefox/Profiles/.
You should now see a folder that’s named xxxxxxxx.default (x’s will be random characters). Open this folder and then open the sub-folder named “chrome.” Now you should see two files named userChrome-example.css and userContent-example.css. If you don’t have “example” concatenated at the end of the file names, don’t worry about it. You’re actually a step ahead.
Now either make a copy of the userContent-example.css file and name it userContent.css or simply rename the one that’s already there. After renaming it, open the css file in any text editor and paste the following at the end the the existing text (location actually won’t matter… but it’s cleaner this way):
/* Smooth Scrolling Workaround: Disable Fixed Background Images on Pages */
body {
background-attachment: scroll !important;
}
Save the file, open Firefox, and your choppy/laggy/jerky scrolling issue should be fixed!
Related posts:
- Firefox Tips, Extensions, and Fixes
- Snow Leopard – Installation (Part 1a/2-Two OS Installations in Three Days)
Topics: Applications, Mac, fixes | No Comments »