The ampersand character is not displayed in tab captions. Reproducible: Always Steps to Reproduce: 1. Open http://darthsanddroids.net Actual Results: Tab caption is "Darths Droids" Expected Results: Tab caption is "Darths & Droids" (like in Firefox)
Patch in https://bugs.kde.org/show_bug.cgi?id=382512
Patch from comment #1 was for KSysguard, not Rekonq.
Development on Rekonq ceased four years ago, and it has been unmaintained since then. KDE recommends using Falkon instead.