Users report that Apple Business and immigration platform Alma are blocking Firefox access, requiring users to switch to Chrome. These instances add to growing concerns about Firefox compatibility across the web. The browser's approximately 2-3% market share puts it in a position similar to Internet Explorer when companies began dropping support.

Developers cite business reasons for Firefox exclusivity. Many companies allocate limited testing resources to browsers with higher user bases, treating Firefox as a rounding error. The cost of cross-browser compatibility versus the value it provides makes supporting Firefox a difficult business case for many organizations with tight development cycles.

Firefox users have found workarounds through user agent spoofing extensions, allowing access to otherwise restricted sites. While some view this as developer laziness rather than an industry-wide trend, the practice continues as Chrome's dominance grows, leaving Firefox users with fewer options but also demonstrating that many "Chrome-only" sites function perfectly with modified browser identification.