Build Identifier: http://hg.mozilla.org/mozilla-central/rev/ca4af4af5334 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120926030625 Steps to reproduce: 1. Open any long page( ex. https://developer.mozilla.org/en-US/docs/Firefox_16_for_developers ) 2. Alt > File > Print Preview 3. Scroll the preview up/down Actual results: Gray area appears Expected results: Should not Regression window(m-c) Good: http://hg.mozilla.org/mozilla-central/rev/08d435dedc7f Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120925004825 Bad: http://hg.mozilla.org/mozilla-central/rev/7c7639f797d0 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120925061523 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=08d435dedc7f&tochange=7c7639f797d0 Regression window(m-i) Good: http://hg.mozilla.org/integration/mozilla-inbound/rev/473a5fa0d336 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120924201523 Bad: http://hg.mozilla.org/integration/mozilla-inbound/rev/e6e7a1b07944 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120924201727 Pushlog: http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=473a5fa0d336&tochange=e6e7a1b07944 Suspected: Bug 792314

Confirmed, backing out bug 792314 locally fixed it.

May be fixed by the patch in https://bugzilla.mozilla.org/show_bug.cgi?id=539356#c333.

http://hg.mozilla.org/mozilla-central/rev/85f561c755f6 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/18.0 Firefox/18.0 ID:20120929191424 The gray rectangle problem was gone. But now,I have a different problem. The text is shown only half of the upper parts of the view port. And text appears and disappears when I scroll the preview,

Screen capture on Windows7: http://youtu.be/72eJYTFsDM8 This problem also happen on Ubuntu. Screen capture on ubuntu12.04: http://youtu.be/I6vhPCy-RXs

Backed out for: https://tbpl.mozilla.org/?tree=Mozilla-Inbound&rev=a5c50066ecbb https://hg.mozilla.org/integration/mozilla-inbound/rev/8af00f1609b9

This triggered reftest assertions about GetOffsetTo looking across documents. The call aExtraPage->GetOffsetTo should be aExtraPage->GetOffsetToCrossDoc.

Mozilla/5.0 (Windows NT 6.1; rv:18.0) Gecko/18.0 Firefox/18.0 Verified in Firefox 18 beta 4. Scrolling in print preview with different options (landscape, portrait, shrink to fit, 175%) works correctly. No grey areas.

mass remove verifyme requests greater than 4 months old