Bug 1601475

Summary:	firefox 60.1.0 gives fontconfig warnings on start up
Product:	Red Hat Enterprise Linux 6	Reporter:	James Pearson <james-p>
Component:	firefox	Assignee:	Jan Horak <jhorak>
Status:	CLOSED WONTFIX	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	6.10	CC:	devinh7777, devin.hathaway, jwright, massi.ergosum, mmielke, stransky, toneata
Target Milestone:	rc	Keywords:	Regression
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2019-07-03 12:26:15 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description James Pearson 2018-07-16 13:10:17 UTC

Description of problem:

When starting firefox 60.1.0 on el6, it gives lots of warning like:

Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 84: Having multiple <family> in <alias> isn't supported and may not work as expected       
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 84: Having multiple <family> in <alias> isn't supported and may not work as expected       
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 93: Having multiple <family> in <alias> isn't supported and may not work as expected       
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 93: Having multiple <family> in <alias> isn't supported and may not work as expected       
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 102: Having multiple <family> in <alias> isn't supported and may not work as expected      
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 102: Having multiple <family> in <alias> isn't supported and may not work as expected      
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 33: Having multiple <family> in <alias> isn't supported and may not work as expected           
...

Version-Release number of selected component (if applicable):

firefox-60.1.0-5.el6

How reproducible:

Always

Steps to Reproduce:
1. Install firefox-60.1.0-5.el6
2. Run firefox from a terminal window

Actual results:

Fontconfig warning messages as above

Expected results:

No Fontconfig warning messages

Additional info:

Issue can be fixed by adding the following line to the /usr/bin/firefox wrapper script before firefox is exec'd:

 export FONTCONFIG_FILE="$MOZ_LIB_DIR/firefox/bundled/etc/fonts/fonts.conf"

Comment 4 Mark Mielke 2018-12-27 10:38:44 UTC

I think this is the correct fix to /usr/bin/firefox:

--- firefox.original	2018-12-27 05:35:03.100336478 -0500
+++ firefox	2018-12-27 05:35:56.660076859 -0500
@@ -104,5 +104,5 @@
 ## Set FONTCONFIG_PATH for Xft/fontconfig
 ##
-FONTCONFIG_PATH="/etc/fonts:${MOZILLA_FIVE_HOME}/res/Xft"
+FONTCONFIG_PATH="$MOZ_LIB_DIR/firefox/bundled/etc/fonts:${MOZILLA_FIVE_HOME}/res/Xft"
 export FONTCONFIG_PATH

The /etc/fonts in RHEL 6.10 is owned by a different version of fontconfig, and seems to have incompatibilities with the version embedded in firefox. So, using /etc/fonts introduces a problem, and using $MOZ_LIB_DIR/firefox/bundled/etc/fonts should fix this problem?

Comment 5 Martin Stransky 2019-01-04 12:51:58 UTC

Mark, thanks for the patch, Jan is going to handle that.