If you see a message that says Java is “unsupported”, “disabled”, “not installed”, or something similar instead of the “Activate Java” link, you cannot run the site in question on Firefox.
You can also click Allow and Remember to place the site on Firefox’s “Allowed” list.
Closing and re-opening Firefox may result in Firefox updating, which will render Java unusable. Using an old version of Firefox increases the risk of contracting a computer virus or running into malware. You can never update your old version of Firefox, as doing so will remove your Java support.
Click Free Java Download Click Agree and Start Free Download Double-click the downloaded Java setup file. Click Yes when prompted. Click Install at the bottom of the Java window.
Click the Extract tab at the top of the window. Click Extract all in the resulting toolbar. Click Extract at the bottom of the pop-up window.
Click I accept the risk! when prompted. Click the search bar at the top of the page. Type in app. update. auto Double-click the app. update. auto result to change its value from “true” to “false”. Be sure to click Not now or Ask later if ever prompted to update.
If you accidentally update Firefox or an update gets pushed through, you can reinstall Firefox 51 by deleting the firefox-51. 0b9. win32. sdk folder (not the ZIP version), opening the ZIP folder of the same name and re-extracting it, and then re-opening the Firefox 51 app from within the bin folder.
If you see “false” below the “value” heading, proceed.
