If you need to run 32-bit Firefox or manually install 64-bit Firefox, you can simply download and re-run the Windows (32-bit or 64-bit) Firefox installer from the Firefox platforms and languages download page. You can still manually install 64-bit Firefox, if you choose. If you see “(32-bit)” and are running Firefox 56.0.1 or newer, then your computer may not meet the minimum memory requirement for 64-bit (3 GB RAM or more).If you see “(32-bit)” and you are running Firefox 56.0 or older, updating to the latest Firefox version should automatically upgrade you to 64-bit.Check your Firefox version (in the “About Firefox” window) and look for “(32-bit)” or “(64-bit)” after the version number: If you’re running 64-bit Windows ( here’s how to check), your Firefox may already be 64-bit. Linux and macOS users, fret not, you already enjoy a Firefox that’s optimized for 64-bit. Also, with the jump from 32 to 64 bits, a security feature called Address Space Layout Randomization (ASLR) works better to protect you from attackers. Here’s the key thing to know: 64-bit applications can access more memory and are less likely to crash than 32-bit applications. What’s the difference between 32-bit and 64-bit? How much less? In our tests so far, 64-bit Firefox reduced crashes by 39% on machines with 4GB of RAM or more. That means you get a more secure version of Firefox, one that also crashes a whole lot less. All data should be there as you left before.Users on 64-bit Windows who download Firefox can get our 64-bit version by default. You can now check if all your passwords, bookmarks, and other data are present now. Firefox is also the only major browser backed by a non-profit fighting to give you more. When you choose Firefox for Windows as your default browser, you’re choosing to protect your data while supporting an independent tech company. Step 4: When you get the following screen, uncheck Restore default settings and remove old add-ons for optimal performance option.Ĭlick Re-install button to complete the reinstall exercise. Firefox Browser: fast, private & safe web browser When it comes to your life online, you have a choice: accept the factory settings or put your privacy first. If you want to download the full setup, refer to our download Firefox offline installer guide. Step 3: Download a fresh copy of Firefox from Mozilla website. As said earlier, uninstalling Firefox will not delete the Firefox profile folder containing your crucial data such as passwords, bookmarks, and history.
Step 2: Right-click on Mozilla Firefox entry and then click Uninstall option.įollow the on-screen instructions to remove the Firefox from your PC. Step 1: In the Start menu search field, type Appwiz.cpl and then press Enter key to open Programs and Features window. Copy the Profiles folder to a safe location. You can find the profile folder by navigating to C:\Users\UserName\AppData\ Roaming\Mozilla\Firefox. Just to be safe, we recommend you create a backup of Firefox profile folder to a safe location and restore the same folder if you find that something is missing after reinstalling Firefox (very very unlikely though). However, we cannot guarantee the same for later versions! IMPORTANT: We have tested this method with Firefox v59 and works great. If you had Firefox on your computer in the past, you’ll have the option to keep your old settings or go back. The file will download, click on it and it will begin the installation process. Click the DOWNLOAD NOW button to download an official version of Firefox. In short, you are not deleting Firefox profile data when you uninstall it.Ĭomplete the given directions to reinstall Firefox on Windows 10 and earlier versions without losing data. Click on the DOWNLOAD button to visit the official Mozilla Firefox download page. When you re-install Firefox on the same Windows installation again, Firefox starts using the data from that profile folder.
The thing is that the Firefox uninstaller doesn’t delete data from your Firefox profile folder (which includes important data such as passwords, history, bookmarks, and cookies) and you need to manually delete the profile folder if you want to remove these data from your PC. The uninstaller no longer displays this option but doesn’t delete the profile data.
The good thing is that you can reinstall Firefox on Windows 10 and earlier Windows versions without losing data.Īs you likely know, in older versions of Firefox (v30 or before), there would be “Remove my Firefox personal data and customizations” option while uninstalling the Firefox. Like other third-party web browsers, although reinstalling Mozilla Firefox browser for Windows operating system is easy, users don’t want to delete their saved passwords, bookmarks, browsing history, cookies, and other data while reinstalling Firefox on Windows.
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