Mouse tracking for Firefox Tree Style Tab extension: does not report information about the tabs in the tree.

[hwf1324]

Steps to reproduce:

1. Install Tree Style Tab extension in Firefox and enable this extension in the sidebar.
2. Move your mouse over the item in the tab tree.

Actual behavior:

The title of the tab entry is not reported.

Expected behavior:

Reports the title of the entry for the tab.

NVDA logs, crash dumps and other attachments:

System configuration

NVDA installed/portable/running from source:

install

NVDA version:

alpha-35319,a1a2bc00

Windows version:

Windows 11 24H2

Name and version of other software in use when reproducing the issue:

Firefox Nightly 137.0a1 (2025-02-19) (64-bit)

Tree Style Tab 4.1.3

https://addons.mozilla.org/en-US/firefox/addon/tree-style-tab/

Other information about your system:

The narrator can report.

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

Yes

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Yes

[hwf1324]

CC: @jcsteh