Cosmetic Filters Should Not Be Created in Element Picker When Cosmetic Filters Are Disabled

[Riajyuu]

Prerequisites

• I verified that this is not a filter issue
  • Filter issues MUST be reported at filter issue tracker
• This is not a support issue or a question
  • Support issues and questions are handled at /r/uBlockOrigin
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
  • Your issue may already be reported.
• I tried to reproduce the issue when...
  • uBlock Origin is the only extension
  • uBlock Origin with default lists/settings
  • using a new, unmodified browser profile
• I am running the latest version of uBlock Origin
• I checked the documentation to understand that the issue I report is not a normal behavior

Description

A.T.

A specific URL where the issue occurs

e.g., this page, https://github.com/uBlockOrigin/uBlock-issues/issues/new

Steps to Reproduce

1. install UBO and disable cosmetic filters
2. enter element picker mode
3. create a rule

Expected behavior:

Cosmetic filters should not be created

Actual behavior:

Cosmetic filters are created

Your environment

• uBlock Origin version: 1.16.6
• Browser Name and version: Firefox 60 64-bit
• Operating System and version: Windows 10 1803 latest

[gorhill]

Unable to reproduce: I can't enter the element picker when cosmetic filters are disabled (gorhill/uBlock#3212).

[uBlock-user]

Due to an existing bug, the element picker wouldn't appear in the first place when cosmetic filtering is disabled.