mozilla/addons-linter

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🔍 Firefox Add-ons linter, written in JavaScript. 👁

Stars: 362
Forks: 162
Open beginner issues: 0
Indexed issues: 58
Avg merge: 1d 5h
Merged PRs (30d): 35

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

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58 open issues indexed

manifest.json not found Open

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

mozilla/addons-linter#6202 · 1 comment · Opened Sep 18, 2026
Manifest validation requires `data_collection_permissions.required` even when an extension only declares optional data collection permissions Open

contrib:good_first_bug

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

mozilla/addons-linter#6118 · 2 comments · Opened Jul 21, 2026
Ignore NOTICE/WARNING/ERROR Open

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

mozilla/addons-linter#6097 · 5 comments · Opened Jul 6, 2026
Restrict description length Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mozilla/addons-linter#6004 · 2 comments · Opened Apr 10, 2026
Validation failure: Mandatory data_collection_permissions in MV3 rejected by versioning logic Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

mozilla/addons-linter#5989 · 1 comment · 1 reaction · Opened Mar 23, 2026
Exception raised linting a static theme with invalid theme image: URIError: URI malformed Open

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

mozilla/addons-linter#5883 · 3 comments · Opened Jan 10, 2026
Refactor the JavaScript scanner to use the new ESLint API Open

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

mozilla/addons-linter#5842 · 1 comment · Opened Nov 5, 2025
Additional properties shouldn't be allowed by default (for "object" type) Open

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

mozilla/addons-linter#5827 · 2 comments · Opened Oct 21, 2025
Bundling Libraries filesize and addons-linter Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

mozilla/addons-linter#5821 · 3 reactions · Opened Oct 16, 2025
False warning: userScripts.onBeforeScript is not supported Open

priority:p5

Difficulty 3/5 1-2 days Newbie friendliness 52/100

mozilla/addons-linter#5820 · Opened Oct 16, 2025
Increase extension file size limit for JSON files Open

contrib:welcome

Difficulty 3/5 1-2 days Newbie friendliness 58/100

mozilla/addons-linter#5685 · 11 comments · 17 reactions · Opened Jun 3, 2025
Fix import script to handle "required" and "properties" schema properties Open

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

mozilla/addons-linter#5671 · 1 comment · Opened May 23, 2025
Consider warning for poor contrast between relevant theme properties Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mozilla/addons-linter#5639 · 1 comment · Opened Apr 28, 2025
Use semvar ranges rather than exact versions for dependencies Open

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

mozilla/addons-linter#5625 · 2 comments · 3 reactions · Opened Apr 8, 2025
Consider introducing a new error code for optional-only permissions Open

component:rule

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

mozilla/addons-linter#5554 · 2 comments · Opened Jan 21, 2025
Remove the workaround applied to the OptionalOnlyPermission type empty enum entry Open

component:schema

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

mozilla/addons-linter#5553 · Opened Jan 21, 2025
Allow up to 75 chars for the `name` manifest prop Open

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

mozilla/addons-linter#5540 · 1 comment · Opened Jan 8, 2025
web-ext lint doesn't catch empty directories in _locales Open

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

mozilla/addons-linter#5484 · 1 comment · Opened Oct 22, 2024
Validate placeholders in locales against default locale Open

contrib:welcome priority:p3 size:M type:feature

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

mozilla/addons-linter#5437 · 1 comment · Opened Sep 10, 2024
Output as list, not table Open

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

mozilla/addons-linter#5423 · 1 reaction · Opened Aug 25, 2024
lint does not pick up unsupported tabs.update options for Firefox for Android Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

mozilla/addons-linter#5429 · Opened Aug 20, 2024
Replace `cheerio` with one dependency (`parse5`) Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mozilla/addons-linter#5400 · Opened Aug 5, 2024
Create Github action to automatically import schemas from Firefox Open

mozilla/addons-linter#5388 · 1 assignee · Opened Jul 23, 2024
Warn about optional_permissions without optional_host_permissions / host_permissions Open

component:MV3

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

mozilla/addons-linter#5329 · Opened Jun 6, 2024
Some tests fails on Windows Open

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

mozilla/addons-linter#5290 · Opened May 14, 2024
Empty response at validation when trying upload new version of firefox addon Open

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

mozilla/addons-linter#5259 · 1 comment · 1 reaction · Opened Apr 18, 2024
web-ext lint doesnt appear to check android min version Open

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

mozilla/addons-linter#5223 · 2 reactions · Opened Mar 12, 2024
Add link to additional docs related to limitations in the MV3 implementation on Firefox for Android Open

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

mozilla/addons-linter#5110 · Opened Nov 20, 2023
Declaring gecko_android in a manifest breaks old versions of Firefox Open

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

mozilla/addons-linter#5071 · 16 comments · Opened Oct 11, 2023
Validate localized manifest `name` Open

priority:p3

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

mozilla/addons-linter#4910 · Opened Jun 8, 2023
Add test coverage to the localized strings Open

component:i18n priority:p3 qa:not_needed

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

mozilla/addons-linter#4849 · Opened May 3, 2023
Add a new option to disable android-specific checks Open

contrib:welcome priority:p4

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

mozilla/addons-linter#4833 · Opened Apr 27, 2023
Update our localized strings to be more consistent Open

component:i18n priority:p3 qa:not_needed

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

mozilla/addons-linter#4829 · Opened Apr 27, 2023
Whitelist `Function("return this")` from DANGEROUS_EVAL Open

component:javascript component:rule contrib:welcome priority:p3

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

mozilla/addons-linter#4814 · 2 comments · Opened Apr 21, 2023
Enhance the compatibility detection for Android when `bss.gecko_android` is defined Open

component:rule priority:p3

mozilla/addons-linter#4781 · 1 assignee · Opened Mar 28, 2023
libraries.js: Alternative Code Open

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

mozilla/addons-linter#4745 · Opened Mar 8, 2023
`_execute_browser_action` in manifest V3 Open

component:MV3 priority:p3

Difficulty 3/5 1-2 days Newbie friendliness 58/100

mozilla/addons-linter#4681 · 6 comments · 1 reaction · Opened Jan 22, 2023
TypeError: propValue is not iterable Open

component:javascript priority:p3

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mozilla/addons-linter#4679 · Opened Jan 17, 2023
this.parsedJSON.content_scripts.forEach is not a function Open

component:javascript priority:p3

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

mozilla/addons-linter#4661 · Opened Jan 6, 2023
CSP_MANIFEST warning description is inaccurate, especially in MV3 Open

component:MV3 component:rule

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

mozilla/addons-linter#4579 · 1 comment · Opened Nov 8, 2022
When CircleCI does not work for pull requests from forks... what to do? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mozilla/addons-linter#4574 · 1 comment · Opened Nov 8, 2022
Consider simplifying the schema files Open

component:schema neverstale priority:p3

Difficulty 5/5 Over a week Newbie friendliness 25/100

mozilla/addons-linter#4513 · 1 comment · Opened Oct 13, 2022
Generate two sets of schema files for MV2 and MV3 Open

component:cli component:schema neverstale

Difficulty 5/5 Over a week Newbie friendliness 20/100

mozilla/addons-linter#4512 · 1 comment · Opened Oct 13, 2022
Merge all schema files to have a unique schema file per manifest version Open

component:schema neverstale priority:p3

Difficulty 5/5 Over a week Newbie friendliness 25/100

mozilla/addons-linter#4511 · Opened Oct 13, 2022
MV3: Error on CSP that declares remote hosts or eval Open

component:MV3 component:rule

mozilla/addons-linter#4465 · 6 comments · 1 assignee · Opened Sep 8, 2022
Emit an error when `options_ui` is used by hidden (privileged) add-ons Open

priority:p3

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

mozilla/addons-linter#4438 · 2 comments · Opened Aug 11, 2022
Unexpected AssignmentExpression in normalizeMethodCall Open

priority:p3 state: stale state:blocked_by_upstream

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mozilla/addons-linter#4198 · 6 comments · Opened Feb 16, 2022
Add .git to FLAGGED_FILE_REGEX Open

contrib:maybe_good_first_bug priority:p3 size:S

Difficulty 1/5 Under an hour Newbie friendliness 55/100

mozilla/addons-linter#4180 · 3 comments · Opened Feb 8, 2022
Re-add eslint-plugin-promise Open

component:code_quality neverstale priority:p3 qa:not_needed size:S

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

mozilla/addons-linter#4016 · 1 comment · Opened Nov 3, 2021
Search extensions fail validation if search parameter values are localized messages Open

contrib:maybe_good_first_bug contrib:welcome priority:p4 size:M type:bug

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

mozilla/addons-linter#3911 · 14 comments · Opened Sep 13, 2021

mozilla/addons-linter

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