--- a/caps/tests/mochitest/chrome.ini
+++ b/caps/tests/mochitest/chrome.ini
@@ -2,10 +2,11 @@
 skip-if = os == 'android'
 support-files =
   file_data.txt
   file_disableScript.html
   !/caps/tests/mochitest/file_data.txt
   !/caps/tests/mochitest/file_disableScript.html
 
 [test_bug995943.xul]
+skip-if = stylo && debug && os == 'linux' # bug 1384701
 [test_addonMayLoad.html]
 [test_disableScript.xul]

--- a/layout/style/test/chrome/chrome.ini
+++ b/layout/style/test/chrome/chrome.ini
@@ -19,8 +19,9 @@ support-files =
 tags = fullscreen
 [test_display_mode_reflow.html]
 tags = fullscreen
 [test_hover.html]
 skip-if = stylo # bug 1346353
 [test_moz_document_rules.html]
 [test_stylesheet_clone_import_rule.html]
 support-files = import_useless1.css import_useless2.css
+skip-if = stylo && os == 'linux' && debug # bug 1395322

--- a/taskcluster/ci/test/tests.yml
+++ b/taskcluster/ci/test/tests.yml
@@ -675,18 +675,16 @@ mochitest-chrome:
             android-4.3-arm7-api-16/debug: 4
             android.*: 2
             default: 3
     max-run-time: 3600
     e10s: false
     run-on-projects:
         by-test-platform:
             windows7-32.*: ['try']
-            linux32-stylo/debug: ['try']
-            linux64-stylo/debug: ['try']
             linux.*-stylo.*: ['autoland', 'mozilla-central', 'try']
             macosx64-stylo/.*: ['mozilla-central', 'try']
             default: built-projects
     worker-type:
         by-test-platform:
             windows7-32.*: buildbot-bridge/buildbot-bridge
             windows8-64.*: buildbot-bridge/buildbot-bridge
             default: null
@@ -720,18 +718,16 @@ mochitest-chrome:
                             - unittests/linux_unittest.py
                             - remove_executables.py
                 extra-options:
                     - --mochitest-suite=chrome
     tier:
         by-test-platform:
             windows7-32.*: 2
             macosx64-stylo/.*: 2
-            linux32-stylo/debug: 3
-            linux64-stylo/debug: 3
             default: default
 
 mochitest-clipboard:
     description: "Mochitest clipboard run"
     suite: mochitest/clipboard
     treeherder-symbol: tc-M(cl)
     loopback-video: true
     virtualization: hardware