The Page Title Eraser (PTE) is a cool firefox addon which lets you hide title text of ay website you open in firefox and the favicon too of the selected tab. It provides more privacy at your workplace like office where you may want to hide the title text of the website you have opened on your office computer.
As you can see in the image above the title of the page is hidden and you can also hide favicon of the website with this extension for firefox.
Related Tip: Check Out Some Other FireFox Tips and Tricks
This extension adds a context menu entry under File Menu >> Tools in firefox and supports the following languages
Translations included: Arabic, Arabic (Saudi Arabia), Catalan, Chinese (Simplified), Chinese (Traditional), Croatian, Deutsch, Dutch (NL), English, French, Italian, Japanese, Korean, Persian, Polish, Portuguese (Brazilian), Russian, Slovak, Spanish (Spain), Turkish.
Note: This plugin works upto FireFox 1.5 – 3.0*