1. The download/restart takes forever and interrupts your work with a bunch of intrusive dialog boxes. This is a valid complaint. Firefox did rapid release bef

1. The download/restart takes forever and interrupts your work with a bunch of intrusive dialog boxes. This is a valid complaint. Firefox did rapid release before it perfected the update process to be fully automatic and silent, that definitely caused some users issues. Mozilla has recognized that publicly and taken responsibility for that decision - and meanwhile fixed the update process as well as launched an extended support release version of Firefox that updates far less frequently. 2. The update may break stuff that you counted on, either by removing features you were using, or by breaking compatibility with other software you use. Maybe the developers never tested your use case, or worse - they tested for it but decdided it didn't matter because only 2% of users used it. Tough luck to you if you're one of those 2%. This point is ironic - because the claim is that users are switching to Chrome, which is the inventor of the 6-week update process. Chrome's 6-week updates can break websites or features that you rely on (I heard devs complain about breakage in the plugin interfaces for examples), just like Firefox's 6-week updates can. When you update software every 6 weeks, and you make those updates real updates (not small security updates), then you risk breaking stuff for users. If you don't like that, you can't use either Chrome or Firefox. You might prefer IE, Safari and Opera which are slower-updating (there is also the Firefox extended support release as mentioned before). So yes, the Firefox implementation of rapid release did not begin 100% smoothly, issues were admitted and worked on. But if you argue against the principle of rapid release, then you can't say in the same breath that users are leaving one rapid release browser (Firefox) for another (Chrome). Side note, there is definite anecdotal evidence for users leaving Firefox for Chrome over rapid release. But there is also anecdotal evidence of users moving in other directions. Looking at the browser market share statistics, Firefox has declined a little and stabilized, with most of the previous decline coming from users of Firefox 3.6, not the modern rapid release versions. Of course the anecdotal stuff could still be right - perhaps 3.6 users move to the modern version, and some modern version people leave for another browser. But it's hard to differentiate that from people just leaving 3.6 directly (and people on modern versions being happy and staying), the data is hard to interpret.