How many versions of mozilla firefox are there

Firefox for Android Get the customizable mobile browser for Android smartphones. Firefox Focus Simply private mobile browsing. 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.

Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web. Get involved Join the fight for a healthy internet. 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. Use the latest version of another browser. If you are not satisfied with the current Firefox version or it simply is not working right now, there are alternative browsers that you can use to browse the web. Grow and share your expertise with others. Answer questions and improve our knowledge base. Search Support Search. Home Firefox Download, install and migration Install an older version of Firefox.

Warning: Firefox now includes downgrade protection to prevent corruption of user profile data. If you install an older version, you'll be prompted to create a new Firefox profile. So maybe I should open 66, then uninstall 63? This is what you can do. Open the file explorer on your computer.

Make your way to the OLD unwanted programs folder and remove it. I have had this same issue before, the way I use to solve this type of problems is using windows control panel then look for uninstall programs and uninstall the version you do not use.

Caution: before doing this make sure you have a backup of your profile, then restart the computer. Reinstall the desired version of FF from mozilla. If the problem persists, what you might need is to uninstall again and delete all FF ledges that exist under windows program files directory. Then repeat the afore mentioned procedure.

You should always confirm in such cases that the two versions are actually installed and that this is not about a leftover key in the Windows Registry that wasn't removed by the updater.

In that case only one Firefox version is installed and removing the older version will remove the current release as well. How do I check that? Can you give me step-by-step directions or tell me where to find them? That would be inspecting this key in the Windows Registry with the registry editor and check Mozilla Firefox keys.

There should be a key present that shows the installation path of each item. If the installation path is the same directory for both Firefox versions then it is likely a leftover key and you can remove this uninstall key. If there is no key for Firefox Yes, that is the most likely explanation for seeing two Firefox entries in the Windows Control Panel.

We regularly see questions about seeing multiple Firefox version showing in the Windows Control Panel Programs section and this is always caused by the updater not having removed the entry for the previous version unless there is a bit and bit version installed in different folders.

Search Support Search. Home Support Forums Firefox Two versions of firefox on computer