Looking for SVG that was/is slow in Firefox

To help move the performance of Firefox's SVG implementation forward I'm looking 
for as many examples of SVG out there as possible where:

  a) Firefox performance improved in the last year or so, or

  b) Firefox performance still sucks (or lags behind other browsers)

Anyone out there care to contribute links? If we can get together a good list it 
would really help us (the Mozilla SVG team) to figure out what we should prioritize.