Thanks for filing the bug! Sorry that you have ran into that "X-Mouse Button Control" scrolling bug, but unfortunately there is no simple way to work around it on our end without compromising security on your Firefox installation. (XMBC is such a low-level tool that it's very difficult for Firefox to tell that it's messing with us) The author has been made away of the XMBC bug and [has a fix for it in the latest Beta](https://forums.highrez.co.uk/viewtopic.php?p=23366#p23366). Hopefully when that goes live, everyone using XMBC won't have to deal with this issue.
Bug 1810878 Comment 3 Edit History
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Thanks for filing the bug! Sorry that you have ran into that "X-Mouse Button Control" scrolling bug, but unfortunately there is no simple way to work around it on our end without compromising security on your Firefox installation. (XMBC is such a low-level tool that it's very difficult for Firefox to tell that it's messing with us) The author has been made aware of the XMBC bug and [has a fix for it in the latest Beta](https://forums.highrez.co.uk/viewtopic.php?p=23366#p23366). Hopefully when that goes live, everyone using XMBC won't have to deal with this issue.