


These updates resolve memory corruption vulnerabilities that could lead to code execution (CVE-2017-2998, CVE-2017-2999).These updates resolve a buffer overflow vulnerability that could lead to code execution (CVE-2017-2997).Movie reload or restart playing when user clicks "SPACE" key.Unresponsive behaviour is observed for microphone on Windows 10/FireFox (FP- 4061929).Pressing Space bar in the Text Field makes the app behave abnormally.( FP-4198253).You can find Firefox 3.6.18 here.New plugin release v25.0.0.127 Fixed Issues: The downgrade procedure will leave your profile untouched. > Firefox 4.0.1 > Win32 (for Windows 32-bit), > en-US (for US English version), download the > Firefox setup 4.0.1 exe file and run it to downgrade from Firefox 5 to Firefox 4. Simply vist the Mozilla FTP Server using your browser, navigate to the Firefox version you want to downgrade to, e.g. You do not have to uninstall Firefox to downgrade.

A guide on the mozillaZine shows you how to locate your profile folder. If, however, Firefox has become a snail or freezes or crashes regularly ever since you upgraded, downgrading may be your only option other than switching to a different browser.īefore you go ahead, back up your Firefox profile to be safe. If your main beef with the latest version of Firefox is that your favorite add-ons are not working, don't downgrade! Wait it out or make your add-ons compatible with any Firefox version. Please be sure to use sufficient security precautions to limit the potential damage on your computer. Older software versions receive limited support and security updates, making them vulnerable to malware from websites you visit. Before you proceed with downgrading your browser, you should be aware that this is a security liability.
