Thundebird: Email image is not blocked.

[ghost]

Prerequisites

• [X] I verified that this is not a filter issue (MUST be reported at filter issue tracker)
• [X] This is not a support issue or a question
• [X] I performed a cursory search of the issue tracker to avoid opening a duplicate issue
• [X] The issue is not present after wholly disabling uBlock Origin ("uBO") in the browser
• [X] I checked the documentation to understand that the issue I report is not a normal behavior

I tried to reproduce the issue when...

• [X] uBO is the only extension
• [X] uBO with default lists/settings
• [X] using a new, unmodified browser profile

Description

Even though I added URLs to My filter, the elements in the email are not blocked.

A specific URL where the issue occurs

localhost

Steps to Reproduce

1. Add assets.revolut.com to your my filters.
2. Open the email containing the image from assets.revolut.com.

Expected behavior

Image delivered from assets.revolut.com will be blocked.

Actual behavior

The image is not blocked.

uBlock Origin version

1.38.6

Browser name and version

Mozilla Thunderbird 91.3.2

Operating System and version

Arch Linux

[arimourao]

Is this still an issue?

[krystian3w]

IMO yes due community didn't created PR to extend filtering to "IMAP://" or "POP3://" frames in Thunderbird based on:

https://github.com/uBlockOrigin/uBlock-issues/issues/825#issuecomment-639653511

https://github.com/uBlockOrigin/uBlock-issues/issues/825#issuecomment-689008806

https://github.com/uBlockOrigin/uBlock-issues/issues/825#issuecomment-923412761