--- a/browser/base/content/test/general/browser.ini
+++ b/browser/base/content/test/general/browser.ini
@@ -116,17 +116,17 @@ skip-if = os == "linux" || e10s # Bug 10
 skip-if = os == "linux" || e10s # Bug 1073339 - Investigate autocomplete test unreliability on Linux/e10s
 [browser_action_searchengine_alias.js]
 skip-if = os == "linux" || e10s # Bug 1073339 - Investigate autocomplete test unreliability on Linux/e10s
 [browser_addKeywordSearch.js]
 [browser_search_favicon.js]
 skip-if = os == "linux" || e10s # Bug 1073339 - Investigate autocomplete test unreliability on Linux/e10s
 [browser_alltabslistener.js]
 [browser_autocomplete_a11y_label.js]
-skip-if = e10s # Bug ????? - no e10s switch-to-tab support yet
+skip-if = e10s # Bug 1101993 - times out for unknown reasons when run in the dir (works on its own)
 [browser_backButtonFitts.js]
 skip-if = os != "win" || e10s # The Fitts Law back button is only supported on Windows (bug 571454) / e10s - Bug 1099154: test touches content (attempts to add an event listener directly to the contentWindow)
 [browser_blob-channelname.js]
 [browser_bookmark_titles.js]
 skip-if = buildapp == 'mulet' || toolkit == "windows" || e10s # Disabled on Windows due to frequent failures (bugs 825739, 841341) / e10s - Bug 1094205 - places doesn't return the right thing in e10s mode, for some reason
 [browser_bug304198.js]
 skip-if = e10s
 [browser_bug321000.js]
@@ -153,55 +153,55 @@ skip-if = e10s # Bug 1093155 - tries to 
 skip-if = e10s # Bug 1056146 - zoom tests use FullZoomHelper and break in e10s
 [browser_bug422590.js]
 [browser_bug846489.js]
 [browser_bug423833.js]
 skip-if = true # bug 428712
 [browser_bug424101.js]
 skip-if = e10s # Bug 1093155 - tries to use context menu from browser-chrome and gets in a mess when in e10s mode
 [browser_bug427559.js]
-skip-if = e10s # Bug ?????? - "content window is focused - Got [object ChromeWindow], expected [object XrayWrapper [object Window]]"
+skip-if = e10s # Bug 1102015 - "content window is focused - Got [object ChromeWindow], expected [object CPOW [object Window]]"
 [browser_bug431826.js]
 [browser_bug432599.js]
 [browser_bug435035.js]
 [browser_bug435325.js]
 skip-if = buildapp == 'mulet' || e10s # Bug 1099156 - test directly manipulates content
 [browser_bug441778.js]
 skip-if = buildapp == 'mulet' || e10s # Bug 1056146 - zoom tests use FullZoomHelper and break in e10s
 [browser_bug455852.js]
 skip-if = e10s
 [browser_bug460146.js]
 skip-if = e10s # Bug 866413 - PageInfo doesn't work in e10s
 [browser_bug462289.js]
-skip-if = toolkit == "cocoa" || e10s # Bug ?????? - not sure why this is timing out and crashing!!
+skip-if = toolkit == "cocoa" || e10s # Bug 1102017 - middle-button mousedown on selected tab2 does not activate tab - Didn't expect [object XULElement], but got it
 [browser_bug462673.js]
 skip-if = e10s # Bug 1093404 - test expects sync window opening from content and is disappointed in that expectation
 [browser_bug477014.js]
 skip-if = e10s # Bug 1093206 - need to re-enable tests relying on swapFrameLoaders et al for e10s
 [browser_bug479408.js]
 skip-if = buildapp == 'mulet'
 [browser_bug481560.js]
-skip-if = e10s # Bug ????? - This bug attached an event listener directly to the content
+skip-if = e10s # Bug 1102018 - This bug attaches an event listener directly to the content, which then never gets called.
 [browser_bug484315.js]
 skip-if = e10s
 [browser_bug491431.js]
 skip-if = buildapp == 'mulet'
 [browser_bug495058.js]
 skip-if = e10s # Bug 1093206 - need to re-enable tests relying on swapFrameLoaders et al (and thus replaceTabWithWindow) for e10s
 [browser_bug517902.js]
 skip-if = e10s # Bug 866413 - PageInfo doesn't work in e10s
 [browser_bug519216.js]
 skip-if = e10s # Bug ?????? - some weird timing issue with progress listeners that fails intermittently
 [browser_bug520538.js]
 [browser_bug521216.js]
 [browser_bug533232.js]
 [browser_bug537013.js]
 skip-if = buildapp == 'mulet' || e10s # Bug 1093206 - need to re-enable tests relying on swapFrameLoaders et al for e10s (test calls replaceTabWithWindow)
 [browser_bug537474.js]
-skip-if = e10s # Bug ?????? - test doesn't wait for document to be created before it checks it
+skip-if = e10s # Bug 1102020 - test tries to use browserDOMWindow.openURI to open a link, and gets a null rv where it expects a window
 [browser_bug550565.js]
 [browser_bug553455.js]
 skip-if = true # Bug 1094312
 #skip-if = buildapp == 'mulet' || e10s # Bug 1066070 - I don't think either popup notifications nor addon install stuff works on mulet? ; for e10s, indefinite waiting halfway through the test, tracked in bug 1093586
 [browser_bug555224.js]
 skip-if = e10s # Bug 1056146 - zoom tests use FullZoomHelper and break in e10s
 [browser_bug555767.js]
 skip-if = e10s # Bug 1093373 - relies on browser.sessionHistory
@@ -326,17 +326,17 @@ skip-if = buildapp == 'mulet' || e10s ||
 skip-if = e10s # Bug 863514 - no gesture support.
 [browser_getshortcutoruri.js]
 [browser_hide_removing.js]
 [browser_homeDrop.js]
 skip-if = buildapp == 'mulet'
 [browser_identity_UI.js]
 skip-if = e10s # Bug ?????? - this test fails for obscure reasons on non-windows builds only.
 [browser_keywordBookmarklets.js]
-skip-if = e10s # Bug ?????? - this test fails for obscure reasons on non-windows builds only.
+skip-if = e10s # Bug 1102025 - different principals for the bookmarklet only in e10s mode (unclear if test or 'real' issue)
 [browser_keywordSearch.js]
 skip-if = e10s # Bug 921957 - remote webprogress doesn't supply cancel method on the request object
 [browser_keywordSearch_postData.js]
 [browser_lastAccessedTab.js]
 skip-if = toolkit == "windows" # Disabled on Windows due to frequent failures (bug 969405)
 [browser_locationBarCommand.js]
 skip-if = os == "linux" || e10s # Linux: Intermittent failures, bug 917535; e10s: Bug 1094252 - Focus issues (There should be no focused element - Got [object XULElement], expected null)
 [browser_locationBarExternalLoad.js]
@@ -364,17 +364,17 @@ skip-if = asan # Disabled because it tak
 
 [browser_pinnedTabs.js]
 [browser_plainTextLinks.js]
 skip-if = e10s # Bug 1093155 - tries to use context menu from browser-chrome and gets in a mess when in e10s mode
 [browser_popupUI.js]
 skip-if = buildapp == 'mulet' || e10s # Bug 1100707 - test fails in e10s because it can't get accel-w to close the popup (?)
 [browser_popup_blocker.js]
 [browser_printpreview.js]
-skip-if = buildapp == 'mulet' || e10s # Bug ?????? - timeout after logging "Error: Channel closing: too late to send/recv, messages will be lost"
+skip-if = buildapp == 'mulet' || e10s # Bug 1101973 - breaks the next test in e10s, and may be responsible for later timeout after logging "Error: Channel closing: too late to send/recv, messages will be lost"
 [browser_private_browsing_window.js]
 skip-if = buildapp == 'mulet'
 [browser_private_no_prompt.js]
 skip-if = buildapp == 'mulet'
 [browser_relatedTabs.js]
 [browser_remoteTroubleshoot.js]
 support-files =
   test_remoteTroubleshoot.html