There are some interesting article at the Lifehack website. The articles lists 15 tweaks and tips for Firefox of which several have not been known by me. Did you for instance know that you could move a page down by pressing the spacebar, that you could move around tabs by pressing CTRL + TAB or that you could use so called smart keywords for searching IMDB in the Address Bar.
For example:
Keyboard shortcuts. This is where you become a real Jedi. It just takes a little while to learn these, but once you do, your browsing will be super fast. Here are some of the most common (and my personal favs):
* Spacebar (page down)
* Shift-Spacebar (page up)
* Ctrl F (find)
* Alt-N (find next)
* Ctrl D (bookmark page)
* Ctrl T (new tab)
* Ctrl K (go to search box)
* Ctrl L (go to address bar)
* Ctrl = (increase text size)
* Ctrl - (decrease text size)
* Ctrl-W (close tab)
* F5 (reload)
* Alt-Home (go to home page)
Or if you like to speed up Firefox and If you have a broadband connection (and most of us do), you can use pipelining to speed up your page loads. This allows Firefox to load multiple things on a page at once, instead of one at a time (by default, it’s optimized for dialup connections). Here’s how:
You know that many of us spend lot of our computing time on the internet and most of that time we use Firefox tabs to open all our favorite Sites and services inside Firefox right?, yes, Gmail inside Ff, Yahoo inside Ff, ebay inside Ff, Banking inside Ff ect. ect. ect….With all these favorites inside Firefox, How about Opening Firefox inside Firefox? Not bad huh? and its really easy too just type in this url in a new tab in Firefox and there you go! Firefox inside Firefox! chrome://browser/content/browser.xul
Disclaimer: I guarantee that this will work with Firefox. But I have no responsibility of any damage that cause Internet Explorer users by Using this with IE to Open Firefox inside IE.
There are plenty of software which lock your folders, some are free, other costs a lot of money. Why you’ll waste time and money when you could do it with your notepad.
* Consider you want to lock a folder named PICS in your D:\, whose path is D:\PICS
* Now open the Notepad and type the following
ren pics pics.{21EC2020-3AEA-1069-A2DD-08002B30309D}
* Where pics is your folder name. Save the text file as loc.bat in the same drive.
* Open another new notepad text file and type the following
ren pics.{21EC2020-3AEA-1069-A2DD-08002B30309D} pics
* Save the text file as key.bat in the same drive.

Usage:
* To lock the pics folder, simply click the loc.bat and it will transform into control panel icon which is inaccessible.
* To unlock the folder click the key.bat file. Thus the folder will be unlocked and the contents are accessible.
That’s all.
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