I am using the latest Firefox on Android (v34) without any add-ons and have 2 major issues when trying to use the HUKD site.
1) The site constantly crashes. It will crash randomly, usually a minute or 2 after a page has loaded. It has started happening every time since 3-4 days, it was fine before. I haven't updated or changed anything on my device so presume something with HUKD. I very rarely get crashes on any other site (maybe 1 a week, and not every time), over the last few days I must have had over 100 crashes on HUKD.
2) The "View site in: Standard | Mobile" option at the bottom does not display at all. It's there with Chrome on Android. It's even there now as I type this on Firefox on Windows. I'm using on a 7 inch and prefer to see in standard desktop mode not mobile, HUKD seems to be one of those few sites that serves mobile version despite using "Request Desktop Mode". I have tried to force to desktop view with "hotukdeals.com/?dforward=true" but it makes no difference. In fact neither switching between true and false in URL or switching "Request Desktop Mode" on/off in Firefox make any difference.