For the internet user mozilla firefox is a favourite browser. It is a open source software.
To increase it’s advantages we can add extra “ADD-ONS” With the main browser. But in the updated version of the browser don’t support old “ADD-ONS”.
So most of the “ADD-ONS” builder updates their “ADD-ONS” when the new version of firefox is in the market. But some of the “ADD-ONS” don’t be updated. So that the user can not use these no the new version of firefox.
In that case, for using old “ADD-ONS” user have to stop the “firefox extension checking feature”.
For this go to the address bar & go to this URL – about:config.
In the new page click on the I’ll carefull, I promise!”.
Now click right mouse at any place & click New>Boolean.
Now type “extensions.checkCompatibility”. See screenshot:
In the New Boolean value box & select False. See screenshot:
After that you will be able to use your old “ADD-ONS” at your new updated firefox.