Download firefox version 51 64 bit windows

Optional software bundled with security software also may need updating. Such software may not be essential for your security but, if outdated, may interfere with the use of Firefox or cause Firefox to crash. In the Menu bar at the top of the screen, click Firefox and select Preferences. Click the menu button and select Options Preferences. Click the menu button and select Settings. Instead of downgrading to an older, insecure version of Firefox and changing your update settings, you should consider these alternatives:.

Install Firefox Extended Support Release. Firefox Extended Support Release ESR is an official version of Firefox developed for large organizations, such as universities and businesses, but it can also be used for personal computers.

Firefox ESR does not come with the latest features but it does have the latest security and stability fixes. No Virus. No Spyware. No Bundle.

No Adware. Mozilla Firefox is one of the most famous browsers on Windows desktops and laptops. Although Mozilla Foundation has many features, it does not compromise on faster browsing and privacy controls. Using this multifunctional browser, you can enjoy surfing and in-depth research on the Internet at will. Compared with the previous beta version, Mozilla Firefox for Windows 10 is a faster and better tool.

This thread was archived. Please ask a new question if you need help. I have a particular piece of software which will not run on any version of Firefox later than V I need to be able to download an earlier version of Firefox my current install is V Privacy Promise Learn how Firefox treats your data with respect.

Firefox Blog Read about new Firefox features and ways to stay safe online. Release Notes Get the details on the latest Firefox updates. Facebook Container Help prevent Facebook from collecting your data outside their site. Pocket Save and discover the best stories from across the web. Mozilla VPN Get protection beyond your browser, on all your devices. Product Promise Learn how each Firefox product protects and respects your data. Firefox Relay Sign up for new accounts without handing over your email address.