Most Useful FireFox tips
Get More Viewing Space
Want to maximize the Web-site view in your browser window? Then make your icons smaller. Just go to View > Toolbars > Customize and check the box next to "Use Small Icons."
Quick URL Fill-in
If you type a site's address without the usual ".com" or "www" and press Ctrl+Enter, Firefox will fill in the rest of the URL for you.
Give Your Bookmarks Keywords
To assign a keyword to a bookmark, simply right-click on it and select Properties. Write a word in the keyword field, and now when you type the word into the location bar, you'll automatically go to that site.
Curb Firefox's RAM Appetite
Firefox was once famous for how light it was on system resources. With each new update, however, it seems be become a bigger and bigger memory hog. Rein Firefox in a little by limiting the amount of memory it uses. Type about:config in the address bar and locate "browser.cache.disk.capacity." Normally, it's set to "50000," but you can lower that number if you find Firefox is using too much system memory
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Mousing Around
Your mouse gives you more browsing control than you might think. If you have a scroll wheel button, clicking it on a hyperlink will open it up in a new tab, while clicking it on a tab will close it. If you hold down the Shift key while scrolling, you can move backward or forward through your browsing history.
Quickly Cross-reference
Ever found something in an online article you instantly wanted more information about? Search for that information easily by highlighting the text, dragging it to the search bar, and pressing Enter. Firefox will search for that text automatically.
Delete Inaccurate URLs
If you've ever mistyped a Web site's address and then seen your mistake pop up whenever you retype the site's name, just highlight the site in the history and press Shift+Delete to get rid of it for good.
Stay Stealthy
If you don't want sites to know where you're coming from, type about:config into the location bar and then find the network.http.sendRefererHeader record. Double click on it, and change the "2" value to "0" to prevent Web sites from seeing your referrer information.
Disable Window Resizing
Web pages that resize windows drive some people up the wall. To fix that, go to Tools > Options, and open the Content tab. Click on the Advanced button next to "Enable JavaScript," then deselect the check box that allows scripts to "Move or resize existing windows."
Choose a Tab
As with IE, Ctrl+Tab will let you cycle through open tabs in Firefox. But if you want to go to a specific tab without using the mouse, use the Ctrl key and the number of the tab's position—Ctrl+1, for example, will open the first tab, Ctrl+2 the second, and so on.
Browse Without a Mouse
Tired of using the mouse? Ctrl+L will move you to Firefox's location bar, while Ctrl+K will move you to the search bar. (When you're there, hold Ctrl and use the up or down arrow keys to toggle the default search engine.)
