diff --git a/.travis.yml b/.travis.yml
index 8a55ea508..03ad06d8d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ language: cpp
 compiler:
     - gcc
 env:
-    - FX_VERSION="50.1.0"
+    - FX_VERSION="54.0b"
     - FX_VERSION="45.0.2esr"
 matrix:
     fast_finish: true
@@ -15,8 +15,8 @@ install:
     - if [ $FX_VERSION = "45.0.2esr" ]; then
         wget -O tarball "https://archive.mozilla.org/pub/firefox/releases/45.0.2esr/linux-x86_64/en-US/firefox-45.0.2esr.tar.bz2";
       fi
-    - if [ $FX_VERSION = "50.1.0" ]; then
-        wget -O tarball "http://archive.mozilla.org/pub/firefox/tinderbox-builds/mozilla-release-linux64-add-on-devel/1481240107/firefox-50.1.0.en-US.linux-x86_64-add-on-devel.tar.bz2";
+    - if [ $FX_VERSION = "54.0b9" ]; then
+        wget -O tarball "https://archive.mozilla.org/pub/firefox/tinderbox-builds/mozilla-beta-linux64-add-on-devel/1496339244/firefox-54.0.en-US.linux-x86_64-add-on-devel.tar.bz2";
       fi
     - tar xf tarball
 before_script: