I wish this helpful for you I have just tried it on both Windows and Mac in Firefox, and both worked fine for me. Apparently, this Flash Of Unstyled Content (FOUC) doesn't happen on everyone's browser. If you insist fixing this, you might think about using some workarounds, such as placing the in body, using @import to import your css, or google it...
Are here any Firebug (Firefox) plugins that will display CSS property values when editing
I wish this help you Actually it is not a new plugin. The functionality is there inside firebug. Just click on the property value and move up and down with the arrows on your keyboard to explore all available option.
Unordered list with list style type: none; & list-style-position: inside; takes extra space in Firefox
around this issue I like to have the bullets and numbers aligned vertically in a proper manner with the text contents in list elements throughout entire site. So I always put.. , Got it! I have been using Firefox 29.0.1. Which showed me this:
How do I trace a Computed style via Firebug (Firefox)?
Hope that helps I have included firebug when launching firefox driver and it works very fine with latest selenium web driver 3.0 but meanwhile it also opens new firebug tab every time when launching browser. , You can set the "showFirstRunPage" flag to "false" in your porfile.
FirefoxProfile profile = new FirefoxProfile();