Cookies in web browsers are an easy way for sites to store authentication/login information, settings, and so much more. One of the things that some sites do for security or privacy purposes is force the cookies to expire after a period of time. Sometimes they expire after a day, a week, a year, or when you close your browser.

Has something ever happened to your Firefox bookmarks, and you were left wondering how you could get back the bookmarks that you lost? Some of you may be using a service such as Foxmarks (review) so that all of your bookmarks are also backed-up online, but often any change you make to your bookmarks will also be reflected in the service you're synchronizing with.

I've always been amused at how a lot of people like to make their browser look look like another another browser. I've seen a countless number of Firefox users who have a theme that looks remarkably like IE 7, and I thought I would show off some tricks to make Firefox even more like IE 7.

It's been well over a year since we've jotted down some excellent tab-related Firefox extensions, and so we thought that it was time to do another round. Since the last article there have been numerous milestones, including the release of Firefox 2. As you can imagine between then and now a lot of new extensions have made their way out the door.

A few days ago Lifehacker posted a sweet Firefox configuration option that would enable inline auto-completion of URL's as you type them into the Address Bar. Changing that setting took away the necessity to use the arrows all of the time for selecting the first entry listed.

One of the new things in Ubuntu 7.10 is the ability to read and write to NTFS formatted drives, which is great for Windows XP and Vista users. What that means is that you can create a Firefox profile in Windows and set it up so that Ubuntu uses the exact same profile.

Way back in July we introduced a new Firefox 3 feature that focused on making users safer from phishing attacks. This is done using URL highlighting which puts more emphasis on the domain name, kind of like what the Locationbar2 extension is used for.

It's not often that I come across a Firefox extension that does so much that it actually warrants its own CyberNotes article, but Tab Kit is one of those extensions. The only thing is that the extension is so new that it's still in the Mozilla Sandbox, and therefore requires an extra step or two to actually get it installed.

One of the things you may have noticed with Flickr is that the photos will have another image overlaid on top of them called spaceball.gif (here is an example photo) This prevents you from copying the address to the image or being able to save it to your computer.

At first glance it may seem like Firefox lacks a lot of configuration options, hoever, much of the fine tuning lies underneath. Most Firefox power users will know about the about:config window which can sometimes be a tedious tool ,but there are a lot of customizable options located there.

I just came across this nifty little Firefox trick that is sure to drive some of your friends crazy! As seen in the screenshot above you can very easily embed multiple Firefox windows inside of your main Firefox window. All you have to do is enter this into the Firefox address bar and press Enter:

The bookmarks in your browser are probably one of the most valuable things you have invested in your browser…well, besides for your passwords. If you ever lost them I’m sure you would start scrambling trying to remember all the sites you had bookmarked.

Firefox is an extremely customizable browser, and combining that with the growing popularity of widescreen monitors results in more sidebars. I used to never use sidebars before I got a widescreen computer because it just took up extra screen space that was otherwise pretty useful. Now you’ll hardly ever find me with a sidebar notopen on my computer!

I just tried out a new extension and the purpose of it is to auto-hide my Firefox Tab Bar. After all, an entire toolbar takes up a good chunk of space and every little bit of room matters to a power user.

There are all kinds of Firefox tips and tricks available on the Web, and when I come across some of the cool ones (many in forums) I jot them down real quick. That way I don’t have to post about just one of the tricks, and instead I can show you a whole compilation of them.

There is so much information all over the web that keeping up with it all can become a tedious task. Most sites have feeds that can be subscribed to so that all of your news is aggregated into one location, but sometimes it is nice to actually visit your favorite sites.

Mozilla has announced that they will be relaunching the Firefox Add-ons site on Monday with only a handful of the extensions that are currently available. In fact, they are said to be trimming down the list of available add-ons to just several hundred, which means they could be cutting 80% to 90% of the ones listed on the site.

Now that Windows Vista has been released it is time for software developers to start making their applications look a little cleaner with the Aero Glass interface. Right now most applications look alright, but many of them don’t take advantages of Vista’s new graphical capabilities...specifically browsers.

The Firefox Downloads window and Add-Ons page are probably some of the things that I use the most in Firefox.

If you are just the slightest bit familiar with Linux then I am sure that you have heard of XGL. It is what adds all of the realistic 3D effects to the windows that you drag around and the virtual desktops that you switch between.