It looks like Mozilla is following through with their promise to churn out new releases of Firefox faster than ever. After just three months of Firefox 4.0’s official release, Mozilla is hitting the ground running with Firefox 5.0, which is out now for your downloading pleasure.
Perhaps the biggest change to Firefox 5.0 is the relocation of the Do-Not-Track setting, which is now positioned at the very top of the Privacy tab in Options to increase discoverability. Do-Not-Track is a setting that was introduced with Firefox 4.0 that gives you the option to opt-out of websites tracking you for purposes such as catered advertisements. This should definitely strike a harmonious chord with privacy buffs. Firefox users on Android are getting the Do-Not-Track feature for the first time with 5.0, making it the first web browser to support this feature across multiple platforms.
Mozilla also included a new feature that will make closing tabs a bit more easier. They will now stay the same size while you’re closing them (very similar to Chrome tabs), that way you’re not jumping around the whole time.
However, you probably won’t notice a huge overall difference between Firefox 4.0 and Firefox 5.0, which should make you wonder if it’s worth upgrading. If add-on and plugin compatibility is an issue for you, I would steer clear for at least a short while until the developers update their add-ons to be compatible with the new version. About half of my add-ons are not compatible yet and most users who upgrade should expect the same outcome. If these aren’t of any concern, upgrade to 5.0. Happy browsing!