Firefox 55.0.2

Firefox

Mozilla Firefox is a fast, full-featured Web browser. It offers great security, privacy, and protection against viruses, spyware, malware, and it can also easily block pop-up windows. The key features that have made Mozilla Firefox so popular are the simple and effective UI, browser speed and strong security capabilities. Firefox is built on top of the powerful new Gecko platform, resulting in a safer, easier to use and more personal product.

Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.

Firefox 55.0.2 changelog:

Fix a regression with the popup menu (Bug 1388682)
Fix performance regressions with WebExtension (Bugs 1386937 & 1389381)
Fix an issue with new installation notification for sideload add-ons (Bug 1372448)
Fix a potential issue when the username had some specific characters in the path (Bug 1388584)