mozilla-mobile/firefox-ios

Visiting a reading list site that has not been previously opened in reader mode never renders content

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#27,546 opened on Jun 24, 2025

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Contributor OKGood first issue

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Description

Steps to reproduce:

  • Visit a new wikipedia page
  • Open the app menu > tools > add to reading list (e.g. for the new app menu)
  • Navigate to the reading list panel (same panel as bookmarks, history, downloads…)
  • Tap the new reading list website
  • Observe that content never loads (Loading content...)

﹍Note﹍: You can tap refresh on the URL bar and it tries again and will load your content. But it’s not an obvious workaround. You can also leave and re-enter reading mode from the toolbar.

!reading mode never loads.jpeg|width=25%,alt="reading mode never loads.jpeg"!

:information_source: Reference Person

@Foxbolts

┆Issue is synchronized with this Jira Bug

Contributor guide

Research direction
Investigate the reading list loading process in Firefox iOS. Start by examining the code path when a reading list item is tapped, focusing on how content is fetched and rendered in reader mode. Look for conditions where content fails to load initially but succeeds after a refresh or re entering reader mode. Check if the issue is related to timing, caching, or session state.
Tech stack
swift
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
SwiftiOS developmentFirefox iOS project
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70