The "Facebook" container context menu option is wrongly displayed for any links clicked

[Softvision-MariusComan]

[Notes]:

• If there is a possibility to detect if the link is related or not with "Facebook", then maybe we could display the "Facebook" container option for the related link and we should not display it for the non-related ones.

[Affected versions]:

• Firefox 59.0.1 and up

[Affected Platforms]:

• All Windows
• All Mac
• All Linux

[Prerequisites]:

• Have a Firefox profile with the latest version of the "Facebook Container" add-on (1.2.2) installed.

[Steps to reproduce]:

1. Open the browser with the profile from prerequisites and open a new normal tab.
2. Right click on any "Top Site" beside the "Facebook" one (eg. Youtube).
3. Hover the "Open Link in New Container" option and observe the displayed containers.

[Expected result]:

• The following containers are displayed:
  - Personal
  - Work
  - Banking
  - Shopping

[Actual result]:

• The "Facebook" container is also displayed for any kind of links.

[Additional Notes]:

• Even if the user selects the "Facebook" container option from the context menu, the website will be opened in a normal tab.
• Attached a screen recording of the issue:
  

[ryanfeeley]

Well spotted.

Because this feature auto-contains Facebook.com activity, I don't see this menu item as providing any use.

I would suggest that Facebook not appear in this contextual menu at all.

[TanviHacks]

This is baked into the platform and can't be changed.

[ryanfeeley]

@TanviHacks Oh well, seems pretty harmless anyway. Do you have telemetry on how many containers users access this contextual menu?

[TanviHacks]

Access the containers context menu, or access context menu in general? I don't think we have telemetry specific to the containers subsection of the context menu. @jonathanKingston to confirm.

[ryanfeeley]

The former.