The weakness of most software companies is that they dont really support third party plug ins very well. Often majorly important functionality missing from the browser ends up being provided by someone working in their backroom who may not have the time or inclination to update it for free. I think that companies like mozilla and microsoft should check out all the apps before they go into the catalogue and select the best ones to maintain and support. The catalogue should then be split into sections which say whether or not update will be automatic - this in my view is the biggest downside of the open source concept in that really good projects fall by the wayside because the developer has got bored with it