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1.  Supported Browsers and how to increase text size

Microsoft Internet Explorer 7 and above (not on the Mac) IE6 should work on the site, but there may be some issues with the layout

Using your mouse: View > Text Size. You can also use Tools > Internet options > Accessibility

Using your keyboard:  Control key and + or – to increase or decrease text size

Safari 4 and above (on the Mac, limited support on the iPad)

Using your mouse: Safari > Preferences > Advanced then select minimum font size to display

Using your keyboard: Command key and + or – to increase or decrease text size

Firefox 3.6 and above (on the PC, limited support on the Mac)

Using your mouse: 'View' > 'Zoom' > 'Zoom in' or 'Zoom out'

Using your keyboard: Control key and + or – to increase or decrease text size

Google Chrome v 11 and above

Using your mouse: Customize and control Google Chrome > Zoom

Using your keyboard: Control key and + or – to increase or decrease text size

You may experience additional issues if using a version of a browser still in BETA, report these to the relevant company who’s supporting the BETA.

2.  How to listen to

Some operating systems also have built-in accessibility features that can read text aloud, or magnify parts of the screen. If you have your own screen reading software you should find it works well on  If you face any particular issues on the giffgaff site, please don’t hesitate to report these to

3.  Speed of the website

We know that site speed is important to our customers and we strive to deliver as fast a site as possible, however there are additional external factors which can influence the speed at which you can view our site.  These can include your Internet speed and the performance of your Internet Service Provider as well as the number of users browsing all sites at any one time.

4.  Screen resolutions

Our site is designed for optimal use at resolutions between 1024×768.

5.  Our Mobile Site

We’re aware that top-up functionality can be better on our mobile site if you don’t use a mouse, if this applies to you visit our Mobile site to top-up.

6.  Plug-ins and helpers

Plug-ins and helpers are not required for key functions on our site, but we do assume you have:

Adobe Reader for .pdf files

Adobe Flash Player (to watch embedded videos)

If a plug-in or helper application is required to access content, this will normally be highlighted. Plug-ins can be downloaded using the links below. giffgaff are not responsible for content on third party sites – including sites linked to above.