Customize Firefox blank page
Published: December 14th, 2007
When you open a new tab (File/New tab, or Ctrl + T) you get a blank tab.
If blank is too much for you, try adding some color and style to the blank page.
Just add this code to your userContent.css file located in your profile folder to add a light Firefox icon to the bottom right of the blank page.

As you can see in the linked code, the image is embeded as a data URI. You can use your favorite image replacing the data URI with your favorite image:
- Visit Ian Hickson’s data: URI kitchen,
- Check the base64 check box
- Upload your image
- Replace the data: URI in the linked code with the generated link
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December 14th, 2007 at 4:41 pm
You can customise the Blank Page also with the Stylish add-on.
[Reply]
December 14th, 2007 at 5:21 pm
That’s a wonderful tip - thanks!
(I would - and did - choose a different color though; #FFFF11 turned out to be too obtrusive.)
[Reply]
December 15th, 2007 at 2:14 pm
If you have the Stylish extension, there are a ton of things that do this for you already. If you have it installed, here is a link to a list of about:blank replacements for you:
http://userstyles.org/styles/search/about%3Ablank?category=app
Percy, say something about this in your blog post…
PS: I didn’t see the comment by avatar666 until just not; not editing comment
[Reply]
January 3rd, 2008 at 1:56 am
Hi,
I would like to change the Tab Close (X) icon color from red with rounded corners to the old square one (no colors/BW/gray)
How can I do this?
Thanks,
Jay
[Reply]
March 13th, 2008 at 8:49 am
This would be fun, if about:blank was only used in new tabs. It’s not. This has never been a good idea, take a look at how about:blank is actually used:
http://www.honestlyillustrated.com/userstyles/stylishguide/stylishguide.html#about:blank
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June 5th, 2008 at 2:47 am
This is a pointless use for it, but data URI’s can be very useful. Instead of uploading to convert to base64, you can use IZArc, which also happens to extract more types of archive files than most people know exist. =D
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