Reproducible on: -latest Aurora 31.0a2, buildID: 20140502004003 Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Firefox/31.0 -latest Nightly 32.0a1 buildID: 20140502030202 Mozilla/5.0 (X11; Linux i686; rv:32.0) Gecko/20100101 Firefox/32.0 Steps to reproduce: 1. Open about:newtab page in full screen 2. Resize the browser so that the number of column tiles is 1 or 2 Expected results: Search text field length is equal with the length of the tiles from the first row Actual results: The length of the Search text field is not always resized to the lenght of the tiles Note: 1. The issue is not reproducible on Win 7 64-bit and Mac OSX 10.9.2. This might be because on Ubuntu the re-size is not dynamical. 2. This issue is not a regression.

Which version(s) of Ubuntu does this happen with?

Reproduced with Ubuntu 12.10 32-bit and Ubuntu 13.04 64-bit, so I believe that all versions are affected.

Mass-move to Firefox::New Tab Page. Filter on new-tab-page-component.

Bug 1036288 changed the design by fixing the search field to a certain width, so this bug is obsolete on 33+. This is a pretty minor bug, so I don't think we're going to uplift a fix to 31 and 32, so I'm wontfixing it.