mozilla-mobile / mozilla-mobile/firefox-ios
Youtube theater mode not using full screen width
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Bug 🐞
- Dominant language
- Swift
- Stars
- 13k
- Forks
- 3.3k
- Avg merge
- 1d 20h
- Merged PRs (30d)
- 188
Description
Steps to reproduce
- Open any wide format video on Youtube, e.g. https://www.youtube.com/watch?v=6Y8FVIiWyao
- Click the "theater mode" button on the player toolbar (third button from the right)
Expected behavior
- The video always uses the full screen width, like in Safari and Chrome
Actual behavior
- Initially the video is not using the full width and there are black bars on the left and right.
- Only after scrolling down the page, the video is enlarged to the full width (and the resize process is not smooth)
Device & build information
- Device: iPad Pro 10.5"
- Build version: 109.0 (25841)
- Notes
Attachments:
UNITO-UNDERSCORE!firefox!
UNITO-UNDERSCORE!safari!
- Notes
┆Issue is synchronized with this Jira Task
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue on an iPad Pro using Firefox for iOS 109.0 (25841), following the YouTube theater-mode steps and comparing the initial layout with Safari or Chrome. Trace the theater-mode and resize behavior from that entry point; done means a wide video uses the full screen width immediately, without black side bars or an unsmooth resize after scrolling.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- swift
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100