Install an older version of Firefox | Firefox Help - Mozilla Support
Older releases don’t receive security updates. Known bugs and vulnerabilities can expose your data. Many websites may not work correctly with outdated browsers. Unwanted features in the new Firefox …
Installing a previous version of Firefox | Mozilla Support
May 29, 2012 · Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.
Why do Java, Silverlight, Adobe Acrobat and other plugins no longer ...
Mar 7, 2017 · Since Firefox version 52 was released March 7, 2017, installed NPAPI plugins have not been supported in Firefox, except for Adobe Flash Player. Some of the plugins that no longer load in …
Websites look wrong or appear differently than they should
May 13, 2025 · This article explains how to fix problems with websites that display incorrectly in Firefox or don't work the way they should.
Client Challenge - Mozilla Support
Please check your connection, disable any ad blockers, or try using a different browser.
Firefox Help - Mozilla Support
Restore bookmarks, passwords and data from an old Firefox profile Use Troubleshoot Mode in Firefox Back up and restore information in Firefox profiles View All 12 Articles
Firefox support for Windows 7, 8 and 8.1 | Firefox Help
No. Most browsers, including Google Chrome and Microsoft Edge, have already ended support for Windows 7, 8 and 8.1. Can I still browse safely with Firefox Windows 7, 8 and 8.1? Mozilla is …
Import data from another browser | Firefox Help - Mozilla Support
Oct 16, 2025 · Firefox lets you import bookmarks from other browsers installed on your computer. It also lets you import other data, such as browsing history and saved passwords, from some of these …
How do I uninstall multiple older versions of Firefox?
May 17, 2020 · There seems to be 3 applications of Firefox showing in the installed apps list is this correct? How do I uninstall on old version of Firefox in Win10
TLS 1.0, 1.1 exceptions for private (home) network - Mozilla Support
Jun 20, 2022 · Phoenix bios had name first and Firebird SQL got name shortly before so it was renamed to avoid confusion. Other web browsers (ex: Chrome, Edge, and Safari) have depreciated support for …