Steps to reproduce the problem

1. Click on a GIF inside a toot
2. It opens in the corner of the screen

Expected behaviour

The GIF to open centralized

Actual behaviour

The GIF appears at the left corner of the screen

Detailed description

Here's a demonstration:

Static image (link)

GIF image (link)

Mastodon instance

bolha.one, ursal.zone, mastodon.social

Mastodon version

4.6.0-alpha.1@882afd7+bolhinha, 4.6.0-nightly.2025-11-06

Browser name and version

LibreWolf 144.0.2-1, Chromium 141.0.7390.122

Operating system

Debian 13

Technical details

No response