Jay Sullivan, vice president of product at Mozilla, made the comments during a panel discussion at SXSW.
Additionally, Apple prevents users from making any other application the default browser. This means that users are often forced to use Safari when they may have preferred another app.
Sullivan argued that this closed environment makes Apple's users suffer. However, when CNET reported queried the audience, a majority of attendees identified themselves as iOS users but few indicated they were suffering.