Porto - Footer blocks:
Porto theme of magento has no. of functionality like it’s Responsive Theme & Retina Ready, Unlimited Color Options, Unlimited Header Types, etc. and it gives customize options in footer so that user can customizes the footer as per their requirement .We can enable or disabled the footer options using static blocks which are in magento dashboard.
Login Magento admin ->CMS->Static blocks.
Search for the footer block which we have to customize or disabled, and make the changes which you want to change the logo from footer, click on the logo it gives the path in url go to that path and paste your logo and call it from backend (Dashboard of magento) .
Login Magento admin ->System->Configuration->Theme setting-> Footer – Bottom-> Logo Image Src for Footer, Call your logo from above path,
Porto - Footer Middle Twitter Widget:
To link your Twitter account on ["In porto magento theme footer middle section of Home page has a block of Twitter Widget which shows Tweets by xyz. Xyz is nothing but the users name to link the"]. To create a timeline you must be signed in to twitter.com and visit the widgets section of your settings page. From this page you can see a list of the timelines you've configured and create new timelines.
First Sign in with your twitter account from twitter.com
Goto the Settings then Create a new widget. The widget-id is provided by Twitter (you will be redirected to https://twitter.com/settings/widgets/0000000000/ - the 000000000 is your widget-id) And the last one Paste that id in your static block of Twitter Widget it gives the tweets of the user for which you created a widget id. We can remove the payment images from footer if required for that, Login Magento admin ->CMS->Static blocks-> porto_footer_bottom_custom_block (block Identifier) disabled that block from options.
To change Copyrights Text from footer:
Porto home page has some Copyrights Text(Copyright 2015 by SW-THEMES. All Rights Reserved.) in footer to customize it, Login Magento admin ->System->Configuration->Theme setting-> Footer – Bottom-> Copyrights Text . Write the Copyrights Text which you want, in-front of Copyrights Text.