The recommended way to install user styles is to use Firefox with Stylish.
If you already have Firefox with Stylish, make sure this site is allowed to run JavaScript.
You've installed this user style in Stylish. To uninstall it, open the Tools menu, choose Add-ons, click the User Styles panel on the top, click on the entry for this user style, and click Uninstall.
Like customizing Firefox? Customize your new tabs with New Tab King.
You've installed this user style in Stylish. To uninstall it, open the Tools menu, choose Stylish, and remove the entry from there.
You've installed this user style in Stylish, but a newer version is available.
To uninstall this user style, open the Tools menu, choose Add-ons, click the User Styles panel on the top, click on the entry for this user style, and click Uninstall.
Like customizing Firefox? Customize your new tabs with New Tab King.
The recommended way to install this user style is to .
Please see Gmail *2* small attachment icons by Moktoipas and Gmail - attachment icon replacer by USBman for where this came from as it is simply a combination of the two (i.e., borrowed code). The aim was really to update the latter for the new Gmail interface. Whether you use Windows, Mac, or Linux...this should display the attachment icons native to your system. Hopefully it works for you like it does for me!!
EDIT: As someone noted in the comments below, this may not work with the Better Gmail 2 extension for Firefox. I haven't gotten a chance see this problem first-hand, but just note that it may be a problem.
**UPDATE** This update includes the code from Stybi (see comments section below).