Created attachment 8430831 [details] screenshot.png Setting layout.css.devPixelsPerPx=1.3 (as recommended by #Bug 570442) the Preferences editor becomes unusable - switching back and forth between the panes - e.g. General / Advanced etc gradually shrinks the Preferences window - each click shrinks it one more step. Very quickly you can't get to the config editor button in order to change it back at which point the only way to unbrick TB is to edit prefs.js by hand. Screenshot attached
Josiah, any idea about this?
Not really, but this happens on Firefox as well, so I'm making this is a toolkit bug, hopefully some of those guys know what's going on. (If this isn't toolkit, feel free to redirect)
Component: Preferences → Preferences
Product: Thunderbird → Toolkit
Hardware: x86 → All
Version: 30 → 30 Branch
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