diff --git a/browser/config/mozconfigs/linux64/profile-generate b/browser/config/mozconfigs/linux64/profile-generate
new file mode 100644
index 000000000000..b1f292902830
--- /dev/null
+++ b/browser/config/mozconfigs/linux64/profile-generate
@@ -0,0 +1,8 @@
+. $topsrcdir/browser/config/mozconfigs/linux64/nightly
+
+mk_add_options "export MOZ_AUTOMATION_BUILD_SYMBOLS=0"
+mk_add_options "export MOZ_AUTOMATION_PACKAGE_TESTS=0"
+mk_add_options "export MOZ_AUTOMATION_PACKAGE_GENERATED_SOURCES=0"
+mk_add_options "export MOZ_AUTOMATION_L10N_CHECK=0"
+
+ac_add_options --enable-profile-generate
diff --git a/browser/config/mozconfigs/linux64/profile-use b/browser/config/mozconfigs/linux64/profile-use
new file mode 100644
index 000000000000..272851913d58
--- /dev/null
+++ b/browser/config/mozconfigs/linux64/profile-use
@@ -0,0 +1,6 @@
+. $topsrcdir/browser/config/mozconfigs/linux64/nightly
+
+ac_add_options --enable-profile-use
+ac_add_options --enable-lto
+ac_add_options --with-pgo-jarlog=/builds/worker/fetches/en-US.log
+ac_add_options --with-pgo-profile-path=/builds/worker/fetches/default.profraw
diff --git a/moz.build b/moz.build
index 9060a1f51d93..23bca4911e5f 100644
--- a/moz.build
+++ b/moz.build
@@ -124,7 +124,7 @@ if CONFIG['PGO_PROFILE_PATH']:
     ]
     GENERATED_FILES[profdata_gen].script = 'build/merge_profdata.py'
     GENERATED_FILES[profdata_gen].inputs = [
-        CONFIG['PGO_PROFILE_PATH'],
+        '/' + CONFIG['PGO_PROFILE_PATH'],
     ]
 
 DIRS += [