Upgrade browser
Apologies, ifttt requires a spiffy new browser to work
all its magic correctly. Your current browser isn't
compatible.
I'm using Iceweasel 3.6.13 which is modern enough I think.Someone has been using browser sniffing incorrectly. For the record my UserAgent is:
Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.13) Gecko/20101210 Firefox/3.0.6 (like Firefox/3.6.13) FirePHP/0.5
If you notice I enabled the option to not send Iceweasel in the useragent since it was causing problems.