[Bug] Unloaded pinned tabs style

[tinsoldat]

Abstract

Pinned tabs do not have a discarded class when a session is restored and browser.sessionstore.restore_pinned_tabs_on_demand is set to true in about:config.

Steps to reproduce

1. Start Firefox with clean profile.
2. Install TST.
3. Go to about:config
4. Search for browser.sessionstore.restore_pinned_tabs_on_demand.
5. Set it to true.
6. Pin a tab.
7. Switch to a different tab.
8. Make sure that "Open previous windows and tabs" option is on.
9. Close and then reopen Firefox.

Expected result

The pinned tabs should have a discarded class on them as they were not loaded yet.

Actual result

The discarded pinned tabs do not have .discarded as if they are loaded.

Environment

• Platform (OS):
• Version of Firefox: 130.0
• Version (or revision) of Tree Style Tab: 4.0.22

[irvinm]

@tinsoldat what CSS are you using? By default, it looks like the example TST CSS is all commented out and none is related to the discarded property.

[irvinm]

@piroor I did take a look at the classes assigned to a "pinned & discarded" tab and the "discarded" class is not assigned to that type of tab. There doesn't seem to be a way to style discarded pinned tabs directly.

Pinned / Discarded

Pinned / Active

Non-pinned / Discarded

[irvinm]

Related to: #1955 and #1530

[tinsoldat]

@tinsoldat what CSS are you using? By default, it looks like the example TST CSS is all commented out and none is related to the discarded property.

Oh, it was from Tab Unloader for Tree Style Tab.

.tab.discarded {
  opacity: 0.75;
}

I'll edit so that the issue only refers to the class.

[piroor]

It is a bug of Firefox itself as I commented at #1955 (comment) and I've found the bug about this tracked at bugzilla.mozilla.org.
1703072 - Restored pinned tabs discarded status always false