Revert "Issue #756 - Remove Contextual Identity from Basilisk"

This reverts commit ac50c95756.

application/basilisk/locales/en-US/chrome/browser/browser.properties

@@ -638,6 +638,37 @@ e10s.accessibilityNotice.acceptButton.accesskey = O
 e10s.accessibilityNotice.enableAndRestart.label = Enable (Requires Restart)
 e10s.accessibilityNotice.enableAndRestart.accesskey = E
 
+# LOCALIZATION NOTE (userContextPersonal.label,
+#                    userContextWork.label,
+#                    userContextShopping.label,
+#                    userContextBanking.label,
+#                    userContextNone.label):
+# These strings specify the four predefined contexts included in support of the
+# Contextual Identity / Containers project. Each context is meant to represent
+# the context that the user is in when interacting with the site. Different
+# contexts will store cookies and other information from those sites in
+# different, isolated locations. You can enable the feature by typing
+# about:config in the URL bar and changing privacy.userContext.enabled to true.
+# Once enabled, you can open a new tab in a specific context by clicking
+# File > New Container Tab > (1 of 4 contexts). Once opened, you will see these
+# strings on the right-hand side of the URL bar.
+userContextPersonal.label = Personal
+userContextWork.label = Work
+userContextBanking.label = Banking
+userContextShopping.label = Shopping
+userContextNone.label = No Container
+
+userContextPersonal.accesskey = P
+userContextWork.accesskey = W
+userContextBanking.accesskey = B
+userContextShopping.accesskey = S
+userContextNone.accesskey = N
+
+userContext.aboutPage.label = Manage containers
+userContext.aboutPage.accesskey = O
+
+userContextOpenLink.label = Open Link in New %S Tab
+
 muteTab.label = Mute Tab
 muteTab.accesskey = M
 unmuteTab.label = Unmute Tab