I found the option to change the fonts on Wikipedia to the OpenDyslexic font that can help with readability. You will find there is a cog wheel by the Language menu in Wikipedia and this is where you can choose to change the look of the fonts.
The letters are more defined at the base which means they can not be easily switched to represent another letter or cause a confusion between letters as can occur with some types of dyslexia.
Computer Science Student – University of Southampton.
“Babelbar works with Facebook, Twitter and Google docs. It is useful if you do not have your own text to speech program.”
Babelbar is an extension or add-on for internet Explorer, Firefox, Chrome and Safari and appears over the web page. You need to highlight the text first then it will speak. It can change the colour background, font size and translate text.
Attendee at Accessing the Higher Ground Conference