Our objective is to document the whole Open Web as well as Mozilla technologies. The table below provides an overview of our progress, as well as links to additional details. If you're just getting started as a contributor, check out our getting started guide.

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Section Pages No tags Needs* tags Editorial reviews Technical reviews Outdated pages Dev-doc-needed bugs Documentation requests
API: CSSOM 120 n/a 56 (47%) 6 (5%) 17 (15%) 45 (38%) 6 (5%) 6 (5%)
API: Canvas 128 n/a 0 (0%) 1 (1%) 7 (6%) 7 (6%) 0 (0%) 0 (0%)
API: DOM 659 n/a 127 (20%) 11 (2%) 99 (16%) 275 (42%) 217 (33%) 47 (8%)
API: Device API 101 n/a 36 (36%) 6 (6%) 9 (9%) 15 (15%) 68 (68%) 2 (2%)
API: File API 35 n/a 3 (9%) 1 (3%) 2 (6%) 10 (29%) n/a 4 (12%)
API: Firefox OS APIs 29 n/a 4 (14%) 0 (0%) 2 (7%) 20 (69%) n/a n/a
API: HTML API 410 n/a 153 (38%) 10 (3%) 59 (15%) 82 (20%) 67 (17%) 10 (3%)
API: IndexedDB 104 n/a 2 (2%) 2 (2%) 8 (8%) 5 (5%) 3 (3%) 16 (16%)
API: SVG API 142 n/a 135 (96%) 1 (1%) 8 (6%) 58 (41%) n/a 4 (3%)
API: ServiceWorkers 120 n/a 7 (6%) 6 (5%) 9 (8%) 3 (3%) 2 (2%) n/a
API: Web Animations 41 n/a 0 (0%) 1 (3%) 1 (3%) 11 (27%) 11 (27%) 0 (0%)
API: WebAudio 211 n/a 4 (2%) 4 (2%) 46 (22%) 5 (3%) 1 (1%) 5 (3%)
API: WebCrypto 20 n/a 0 (0%) 1 (5%) 3 (15%) 0 (0%) n/a n/a
API: WebGL 277 n/a 0 (0%) 2 (1%) 0 (0%) 2 (1%) 1 (1%) n/a
API: WebRTC 218 n/a 11 (6%) 21 (10%) 45 (21%) 75 (35%) 22 (11%) 35 (17%)
API: WebSpeech 88 n/a 0 (0%) 0 (0%) 0 (0%) 49 (56%) n/a n/a
API: WebVR 104 n/a 0 (0%) 0 (0%) 0 (0%) 12 (12%) n/a n/a
API: WebWorkers 38 n/a 1 (3%) 0 (0%) 4 (11%) 1 (3%) 4 (11%) 4 (11%)
IntersectionObserver 30 n/a 4 (14%) 2 (7%) 3 (10%) 0 (0%) n/a n/a
Accessibility 244 0 (0%) 37 (16%) 1 (1%) 12 (5%) 207 (85%) 11 (5%) 4 (2%)
Addons 654 33 (6%) 7 (2%) 15 (3%) 42 (7%) 199 (31%) 55 (9%) 30 (5%)
Apps 91 2 (3%) 7 (8%) 2 (3%) 12 (14%) 68 (75%) 0 (0%) 0 (0%)
Archive 2199 549 (25%) 53 (3%) 5 (1%) 229 (11%) 775 (36%) n/a n/a
CSS 846 1 (1%) 201 (24%) 66 (8%) 108 (13%) 6 (1%) 105 (13%) 47 (6%)
DevTools 185 115 (63%) 1 (1%) 7 (4%) 8 (5%) 108 (59%) 76 (42%) 19 (11%)
Events 370 164 (45%) 25 (7%) 2 (1%) 38 (11%) 210 (57%) n/a n/a
Firefox 160 18 (12%) 4 (3%) 1 (1%) 10 (7%) 106 (67%) n/a n/a
Game development 73 0 (0%) 4 (6%) 2 (3%) 6 (9%) 37 (51%) 2 (3%) n/a
Glossary 420 4 (1%) 16 (4%) 3 (1%) 38 (10%) 289 (69%) n/a n/a
Guide 25 1 (4%) 10 (40%) 1 (4%) 1 (4%) 14 (57%) n/a n/a
HTML documentation 206 1 (1%) 15 (8%) 8 (4%) 18 (9%) 5 (3%) 6 (3%) 30 (15%)
HTTP 193 0 (0%) 0 (0%) 34 (18%) 8 (5%) 3 (2%) 12 (7%) 5 (3%)
JavaScript 884 0 (0%) 0 (0%) 47 (6%) 35 (4%) 43 (5%) 0 (0%) 64 (8%)
Learning Area 262 2 (1%) 24 (10%) 22 (9%) 13 (5%) 36 (14%) n/a 18 (7%)
Getting started 9 0 (0%) 0 (0%) 3 (34%) 2 (23%) 0 (0%) n/a n/a
Localization 42 10 (24%) 0 (0%) 0 (0%) 1 (3%) 27 (65%) n/a 3 (8%)
MDN meta- 200 9 (5%) 3 (2%) 3 (2%) 6 (3%) 82 (41%) n/a 0 (0%)
Marketplace 10 0 (0%) 0 (0%) 0 (0%) 1 (10%) 8 (80%) n/a 1 (10%)
MathML 40 0 (0%) 3 (8%) 0 (0%) 0 (0%) 30 (75%) 0 (0%) 2 (5%)
MozQA 108 27 (25%) 4 (4%) 0 (0%) 4 (4%) 94 (88%) 0 (0%) 95 (88%)
NSPR 362 8 (3%) 1 (1%) 0 (0%) 0 (0%) 357 (99%) n/a n/a
NSS 306 153 (50%) 4 (2%) 8 (3%) 67 (22%) 238 (78%) n/a n/a
SVG 306 0 (0%) 235 (77%) 5 (2%) 32 (11%) 219 (72%) 23 (8%) 22 (8%)
SpiderMonkey 551 9 (2%) 18 (4%) 4 (1%) 208 (38%) 513 (94%) 53 (10%) n/a
Thunderbird 116 38 (33%) 5 (5%) 2 (2%) 4 (4%) 60 (52%) 30 (26%) n/a
WebAssembly 9 0 (0%) 0 (0%) 2 (23%) 0 (0%) 0 (0%) 0 (0%) 0 (0%)
XPCOM 1275 307 (25%) 164 (13%) 1 (1%) 73 (6%) 1122 (88%) 22 (2%) n/a
XPath 55 1 (2%) 0 (0%) 0 (0%) 0 (0%) 2 (4%) n/a n/a
XSLT 55 6 (11%) 3 (6%) 0 (0%) 1 (2%) 12 (22%) n/a n/a
XUL 1210 78 (7%) 44 (4%) 0 (0%) 48 (4%) 491 (41%) 7 (1%) n/a
Total 14341 1536 1431 319 1347 6036 804 473

Legend:

  • Red: More than 10% of pages in this area need help with this specific task (such as editorial reviews, etc., see at the top of the table).
  • Yellow: 5%-10% of pages in this area need help with this specific task.
  • Green: Only less than 5% of pages in this area need help with specific task.

Document Tags and Contributors

 Contributors to this page: jswisher, h4nj4r, fscholz, Sheppy, teoli
 Last updated by: jswisher,