User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.3a1pre) Gecko/20100124 BetterPrivacy-1.47 Minefield/3.7a1pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.3a1pre) Gecko/20100124 BetterPrivacy-1.47 Minefield/3.7a1pre ID:20100124045447 When linked page contains a flash-based flyer. Scrolling the mouse wheel up or down is supposed to flip the flyer pages. This is the behavior with IE and Chrome. Firefox, with IPC is frequently unresponsive to scroll-wheel input, and is completely unresponsive on the linked page. Reproducible: Always Steps to Reproduce: 1. Load: http://www.nestersmarket.com/yaletown/ 2. Using only your mouse wheel (i.e. scrolling up or down), attempt to flip through the flyer pages. Nothing will happen. 3. IE and Chrome work properly Actual Results: IPC ignoring scroll-wheel input.

Well, looks like something else is amiss. Need to do some more investigating...

Scrolling the mouse wheel up or down doesn't work with dom.ipc.plugins.enabled = false either. This is probably going to be a dupe of https://bugzilla.mozilla.org/show_bug.cgi?id=207256.

Or more likely a dupe of https://bugzilla.mozilla.org/show_bug.cgi?id=409669.

@Brian. That's possible. Both IE and Chrome allow the flyer pages to flip, with scrolling, as soon as the page is loaded. Firefox is really picky and will only flip with scrolling if the mouse pointer is in the region of the black bar at the bottom of the flyer pages. I was thinking it could be a regression from either bug 526394 or Bug 178324, but you're probably right. I'll do some more checking before deciding to dupe.

OK; duping to Bug 207256. It would be nice if someone actually fixed that bug. I'm running into it a lot more with IPC than without (even when the flash object should not have focus), which is why I initially thought this was an IPC issue.