mdn/fred

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MDN's frontend since late 2025, built with Web Components, Lit, and SSR for a fast, clean documentation experience. Fred = /fr(ont)e(n)d/.

Stars: 233
Forks: 61
Open beginner issues: 0
Indexed issues: 101
Avg merge: 1d 1h
Merged PRs (30d): 82

Dominant language: JavaScript
License: MPL-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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101 open issues indexed

MDN "In this article" sidebar becomes squeezed when Gemini side panel is opened Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 65/100

mdn/fred#1923 · 2 comments · Opened Sep 17, 2026
feat(l10n): validate `.ftl` markup in CI + drop client-side sanitizer Open

p1

Difficulty 5/5 Over a week Newbie friendliness 43/100

mdn/fred#1918 · Opened Sep 16, 2026
Migrate workflows from dtolnay/rust-toolchain to actions-rust-lang/setup-rust-toolchain Open

needs triage

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

mdn/fred#1912 · Opened Sep 15, 2026
Review workflows that only run on pull requests against main Open

p1

mdn/fred#1872 · 1 comment · 1 assignee · Opened Sep 8, 2026
Ensure forward-compatibility with npm v12 Open

p1

mdn/fred#1868 · 1 comment · 1 assignee · Opened Sep 8, 2026
Replace light-dark @mixin with native light-dark image support Open

Difficulty 3/5 1-2 days Newbie friendliness 64/100

mdn/fred#1865 · 3 comments · Opened Sep 7, 2026
Run independent CI steps in parallel Open

github_actions

mdn/fred#1862 · 1 assignee · Opened Sep 7, 2026
Reduce the lag between Firefox releases and Baseline updates Open

blocked

Difficulty 4/5 3-5 days Newbie friendliness 45/100

mdn/fred#1859 · Opened Sep 7, 2026
Overlapping icons on Github menu link Open

p1

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

mdn/fred#1776 · 2 comments · Opened Aug 7, 2026
Support passing HTML/lit templates as arguments to l10n strings Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

mdn/fred#1773 · Opened Aug 6, 2026
Provide a way to use module script in MDN Playground Javascript code Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

mdn/fred#1754 · 1 comment · Opened Jul 31, 2026
Skip Link: Pressing "Tab" after activating "Skip to main content" returns focus to the top of the page in Firefox Open

p1

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

mdn/fred#1726 · 1 comment · Opened Jul 10, 2026
Upgrade to TypeScript v7 Open

blocked

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mdn/fred#1704 · Opened Jul 9, 2026
publish-npm workflow might checkout a different commit other than the one that triggered the publish Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

mdn/fred#1683 · Opened Jun 30, 2026
identify-pr step fails on PRs from fork's main branch Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mdn/fred#1677 · Opened Jun 26, 2026
Close survey banner on completion of "link" surveys Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

mdn/fred#1632 · Opened Jun 3, 2026
With keyboard open, search isn't scrollable on mobile Open

p1

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

mdn/fred#1567 · 1 comment · Opened May 14, 2026
Searching for `max-age` to find information about `cache-control` doesn't work well Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

mdn/fred#1577 · 6 comments · Opened May 12, 2026
Playground should not be able to generate URLs that exceed the maximum length Open

p1

mdn/fred#1507 · 1 comment · 1 assignee · Opened Apr 22, 2026
Generate CSS autocompletions from webref Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

mdn/fred#1482 · 4 comments · Opened Apr 15, 2026
Demo "Reset" button bug Open

mdn/fred#1470 · 1 assignee · Opened Apr 11, 2026
Not useful MDN links from BCD only reload the current page Open

p1

Difficulty 3/5 1-2 days Newbie friendliness 55/100

mdn/fred#1465 · 2 comments · Opened Apr 10, 2026
Reduce number of issues found by Rari in content Open

mdn/fred#1462 · 1 assignee · Opened Apr 9, 2026
Enable Dependabot cooldown for all repositories Open

p1

mdn/fred#1445 · 1 assignee · Opened Mar 31, 2026
Run e2e tests across Chrome and Safari Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

mdn/fred#1437 · 1 comment · Opened Mar 27, 2026
Condense compact menu further Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mdn/fred#1436 · 1 comment · Opened Mar 27, 2026
Expose types and a nicer entrypoint for renderSimplified Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mdn/fred#1404 · Opened Mar 20, 2026
Make menu localizable Open

p1

mdn/fred#1402 · 1 comment · 1 assignee · Opened Mar 20, 2026
"Web components" page missing Baseline status Open

needs content decision

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mdn/fred#1391 · 3 comments · Opened Mar 17, 2026
Add missing l10n tags to strings Open

mdn/fred#1366 · 1 assignee · Opened Mar 12, 2026
Update auto-generated l10n ids Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mdn/fred#1364 · Opened Mar 12, 2026
Move locale strings when updating ids Open

mdn/fred#1363 · 1 assignee · Opened Mar 12, 2026
Sort and group l10n/template.ftl file Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mdn/fred#1362 · Opened Mar 12, 2026
Simplify complex fluent strings Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mdn/fred#1361 · Opened Mar 12, 2026
Run l10n string extractor on pre-commit Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

mdn/fred#1360 · Opened Mar 12, 2026
Baseline banner and Browser compatibility disagree on Notification.requestPermission Open

needs triage

Difficulty 3/5 1-2 days Newbie friendliness 68/100

mdn/fred#1920 · 9 comments · Opened Mar 10, 2026
[compat-table] Firefox Nightly label overflows the cell Open

needs content decision

Difficulty 3/5 1-2 days Newbie friendliness 42/100

mdn/fred#1334 · 2 comments · Opened Feb 28, 2026
[compat-table] Report/view links always refer to first row Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

mdn/fred#1314 · Opened Feb 17, 2026
Make it easy for developers to construct code/commands on HTTP header related pages Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

mdn/fred#1302 · 1 comment · Opened Feb 12, 2026
push pre-commit hook attempts to lint untracked files Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

mdn/fred#1293 · 1 comment · Opened Feb 10, 2026
Implement visual testing framework Open

p1

mdn/fred#1282 · 1 assignee · Opened Feb 5, 2026
Treat earliest possible Baseline date differently Open

p1

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mdn/fred#1275 · 1 comment · Opened Feb 3, 2026
`<em>` in interactive examples doesn't render as italic in Safari Open

p1

Difficulty 4/5 3-5 days Newbie friendliness 42/100

mdn/fred#1269 · Opened Feb 2, 2026
[UI problem] Add to collection modal doesn't have styles Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

mdn/fred#1179 · Opened Jan 5, 2026
Printing a report cuts off the recommendations column Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mdn/fred#1186 · 5 comments · Opened Dec 9, 2025
Archive mdn/data repository Open

blocked

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mdn/fred#1127 · Opened Dec 3, 2025
Sectioning algorithm doesn’t take into account neighbouring headings Open

a11y

Difficulty 3/5 1-2 days Newbie friendliness 40/100

mdn/fred#1113 · 5 comments · Opened Dec 1, 2025
Flaws found by content/auto-cleanup-bot should prevent the PR from being merged Open

p1

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mdn/fred#1105 · 2 comments · 1 reaction · Opened Nov 27, 2025
`pr_check-lint_content.yml` workflow fails on PRs that only change Markdown files in root directory Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mdn/fred#1087 · Opened Nov 18, 2025
prompt() not showing in MDN Playground - returns null immediately Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mdn/fred#1073 · 3 comments · Opened Nov 8, 2025

mdn/fred

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