When using the unofficial branding (such as local builds or asan reporter), the about dialog looks like https://cristau.org/~julien/tmp/about_nightly.png This is caused by bug 1478331 making the logo wider, and thus also taller.
Bug 1575800 Comment 0 Edit History
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When using the unofficial branding (such as local builds or asan reporter), the about dialog looks like https://cristau.org/~julien/tmp/about_nightly.png This is caused by bug 1573103 making the logo wider, and thus also taller.