So on this post, I will teach you how to configure your Mozilla Firefox browser.
There is no need for stories but to go straight to the matter.
Step 1: Click the menu button on your Mozilla Firefox browser. It is located below the close/cancel button. See pix below for reference
Step 2: Click 'options' from the list provided.
Then click 'Advanced' tab, next click 'Network', later click 'Settings'. See the pix below for reference.
Step3: Select 'Manual Proxy Configuration'. Enter the desired configuration and select 'use this proxy server for all protocols'. See pix below as usual.
Then click 'ok' to apply settings.
Good luck to you all.