It doesn't have the latest features but still gets important security patches. Unlike the standard version of the browser, which is updated regularly, versions of Firefox ESR are supported for more than a year. At the end of the period, no further updates will be given to that version, and an update to the next version will be offered.
Occasionally, regular users may want to use ESR. For example, Windows XP users were advised to do so when the vanilla version of Firefox stopped supporting the operating system. Firefox Nightly and Developer Edition will install as separate programs. Beta and ESR will overwrite the standard version of Firefox. If you want to revert back from either, simply reinstall Firefox. Ideally, don't use anything but the latest version of Firefox. Old versions are vulnerable to threats.
Consider using Firefox Extended Support Release if you want to downgrade. Maybe, you don't want the latest features but want to stay protected. Still want to downgrade? First, visit Mozilla's directory of Firefox releases. Click the browser version you want, then your operating system. Next, click the language version you want. For the United States choose en-US.
Finally, click the "exe" link to download the installer. Open it up and follow the wizard. Your chosen version of Firefox will install. Set Allow Firefox to as Check for updates but let you choose to install them. The steps required for this task might be different in some older versions.
Who knew there were so many different versions of Firefox? Hopefully, now you understand what they all do and which is the best version for you. If you're sticking with the general public version of Firefox, but still want to expand its functionality, don't fear. If an updated version of Firefox is available, it will be automatically downloaded.
On Linux, this will happen only if you use a build downloaded from Mozilla's website; otherwise, updates will come through your Package Manager. For more information, see Update Firefox to the latest release. Grow and share your expertise with others.
Answer questions and improve our knowledge base. Search Support Search. Open the Firefox menu. Open Firefox, then press the menu button.
On most devices, this looks like three horizontal lines. Touch the Help icon. This is a question mark inside a circle. It is usually in the lower right corner of the screen. Select About Firefox. Select this from the list that appears when you select Help. This will automatically start a download of the latest Firefox version. To prevent this, put your device in Airplane mode first.
Check the version number. The version number is located just below the word Firefox. Method 2. Display the menu bar.
The top menu bar may already be visible, including the File and Edit menus. On some versions of Windows or Linux, you'll need to press Alt or F10 to make it appear. Alternatively, right-click the top of your Firefox window and check "Menu Bar. Visit the About page. Click Firefox in the menu bar, then select About Mozilla Firefox. In some cases, the About page is located under Help instead.
Opening this page will automatically update Firefox. To avoid this, turn off your internet connection before you click this menu option. Look for the version number below the word Firefox. You should see a pop-up window with the word Firefox at the top. Look for the version number just beneath that, in bold text.
Update automatically. If you are using the latest version of Firefox, you'll see the words Firefox is up to date.
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