After I emerged Xft-2.0.1 I had the following error with QT apps: relocation error: /usr/lib/libXft.so.2: undefined symbol: XRenderQuerySubpixelOrder Then I noticed that ldd /usr/bin/psi shows: /usr/lib/mozilla/libXrender.so.1 (0x4acf9000) It searches for libXrender.so in /usr/lib/mozilla which is _wrong_. Renaming /etc/env.d/10mozilla to /etc/env.d/11mozilla fixes the problem. Greetings
Update to latest mozilla, it have libXrender_moz.so, and not libXrender.so.