Add ability to separate subdomains from domain

[Saad-2023]

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

[Description of the bug or feature]

A specific URL where the issue occurs

[A specific URL is MANDATORY for issue happening on a web page, even if it happens "everywhere"]

Steps to Reproduce

1. [First Step]
2. [Second Step]
3. [and so on...]

Expected behavior:

Please Make it possible to separate subdomains from the domain in uBlock's My Rules panel. and Make possible to define *.domain.com to target all subdomains.

Actual behavior:

[What actually happened]

Your environment

• uBlock Origin version: 1.25.3b6
• Browser Name and version: Firefox Nightly 76
• Operating System and version: Windows 10 Pro x64

[uBlock-user]

Already possible with the rule syntax -- https://github.com/uBlockOrigin/uBlock-issues/wiki/Dynamic-filtering:-rule-syntax#hostname-based-rules

[Saad-2023]

i want scripts of abc.com to be allowed in https://abc.com but , be blocked in all *.abc.com . is it possible?

[uBlock-user]

i want scripts of abc.com to be allowed in https://abc.com but , be blocked in all *.abc.com . is it possible?

Support issues and questions are handled at /r/uBlockOrigin.

[gorhill]

is it possible?

No, it's currently not possible.

[krystian3w]

Test these in uBo dev (@Saadi2020):

! https://github.com/
! https://gist.github.com/
||github.githubassets.com/favicons/$image,domain=/^github.com/

Logger output:

	filter/rule	status	visit	*-party	method	type	url
+3	/favicons/*$image,from=/^github.com/	--	github.com	3	get	image	https://github.githubassets.com/favicons/favicon-dark.png
+3	/favicons/*$image,from=/^github.com/	--	github.com	3	get	image	https://github.githubassets.com/favicons/favicon-dark.svg
+1			gist.github.com	3	get	image	https://github.githubassets.com/favicons/favicon-dark.png
+1			gist.github.com	3	get	image	https://github.githubassets.com/favicons/favicon-dark.svg

maybe cover abc.com without touching subdomains by allow filter.