diff --git a/mozilla/grendel/widgets/images/collapseButton-horizontal-pressed.gif b/mozilla/grendel/widgets/images/collapseButton-horizontal-pressed.gif deleted file mode 100644 index d1bf31e2f06..00000000000 Binary files a/mozilla/grendel/widgets/images/collapseButton-horizontal-pressed.gif and /dev/null differ diff --git a/mozilla/grendel/widgets/images/collapseButton-horizontal-rollover.gif b/mozilla/grendel/widgets/images/collapseButton-horizontal-rollover.gif deleted file mode 100644 index 83322f6c863..00000000000 Binary files a/mozilla/grendel/widgets/images/collapseButton-horizontal-rollover.gif and /dev/null differ diff --git a/mozilla/grendel/widgets/images/collapseButton-horizontal.gif b/mozilla/grendel/widgets/images/collapseButton-horizontal.gif deleted file mode 100644 index 26d600d9ba5..00000000000 Binary files a/mozilla/grendel/widgets/images/collapseButton-horizontal.gif and /dev/null differ diff --git a/mozilla/grendel/widgets/images/collapseButton-vertical-pressed.gif b/mozilla/grendel/widgets/images/collapseButton-vertical-pressed.gif deleted file mode 100644 index 7aa4d78ef2a..00000000000 Binary files a/mozilla/grendel/widgets/images/collapseButton-vertical-pressed.gif and /dev/null differ diff --git a/mozilla/grendel/widgets/images/collapseButton-vertical-rollover.gif b/mozilla/grendel/widgets/images/collapseButton-vertical-rollover.gif deleted file mode 100644 index 738f0c6b124..00000000000 Binary files a/mozilla/grendel/widgets/images/collapseButton-vertical-rollover.gif and /dev/null differ diff --git a/mozilla/grendel/widgets/images/collapseButton-vertical.gif b/mozilla/grendel/widgets/images/collapseButton-vertical.gif deleted file mode 100644 index 29c56c8376f..00000000000 Binary files a/mozilla/grendel/widgets/images/collapseButton-vertical.gif and /dev/null differ