Privacy/Features/Limit CSS3 resolution
Status
| Limit CSS3 resolution and window.screen info to render window size | |
| Stage | Draft |
| Status | ` |
| Release target | ` |
| Health | OK |
| Status note | ` |
{{#set:Feature name=Limit CSS3 resolution and window.screen info to render window size
|Feature stage=Draft |Feature status=` |Feature version=` |Feature health=OK |Feature status note=` }}
Team
| Product manager | Sid Stamm |
| Directly Responsible Individual | ` |
| Lead engineer | ` |
| Security lead | ` |
| Privacy lead | ` |
| Localization lead | ` |
| Accessibility lead | ` |
| QA lead | ` |
| UX lead | ` |
| Product marketing lead | ` |
| Operations lead | ` |
| Additional members | ` |
{{#set:Feature product manager=Sid Stamm
|Feature feature manager=` |Feature lead engineer=` |Feature security lead=` |Feature privacy lead=` |Feature localization lead=` |Feature accessibility lead=` |Feature qa lead=` |Feature ux lead=` |Feature product marketing lead=` |Feature operations lead=` |Feature additional members=` }}
Open issues/risks
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Stage 1: Definition
1. Feature overview
Several projects inlcuding the EFF's panoptclick and Tor (https://trac.torproject.org/projects/tor/ticket/2875) have notices that both desktop resolution can be used to fingerprint users.
There are two issues here: information leaked via Javascript and information leaked via CSS media queries.
2. Users & use cases
-Privacy Enhancing Addons such as the Tor button -web developes testing the behavior of their websites on different platforms
3. Dependencies
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4. Requirements
-CSS properties must not reveal browser side.
Non-goals
-No need to touch Javascript related functions/attributes as these can be handled by the capabilities code.
Stage 2: Design
5. Functional specification
Add a preference to to hide css device information (disabled by default)
When this preference is enabled CSS devuce queries should return the window values instead.
6. User experience design
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Stage 3: Planning
7. Implementation plan
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8. Reviews
Security review
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Privacy review
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Localization review
No Need?
Accessibility
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Quality Assurance review
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Operations review
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Stage 4: Development
9. Implementation
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Stage 5: Release
10. Landing criteria
` {{#set:Feature open issues and risks=` |Feature overview=Several projects inlcuding the EFF's panoptclick and Tor (https://trac.torproject.org/projects/tor/ticket/2875) have notices that both desktop resolution can be used to fingerprint users.
There are two issues here: information leaked via Javascript and information leaked via CSS media queries. |Feature users and use cases=-Privacy Enhancing Addons such as the Tor button -web developes testing the behavior of their websites on different platforms |Feature dependencies=` |Feature requirements=-CSS properties must not reveal browser side. |Feature non-goals=-No need to touch Javascript related functions/attributes as these can be handled by the capabilities code. |Feature functional spec=Add a preference to to hide css device information (disabled by default)
When this preference is enabled CSS devuce queries should return the window values instead. |Feature ux design=` |Feature implementation plan=` |Feature security review=` |Feature privacy review=` |Feature localization review=No Need? |Feature accessibility review=` |Feature qa review=` |Feature operations review=` |Feature implementation notes=` |Feature landing criteria=` }}
Feature details
| Priority | P1 |
| Rank | 999 |
| Theme / Goal | Advancing Anonymity |
| Roadmap | Privacy |
| Secondary roadmap | ` |
| Feature list | Platform |
| Project | ` |
| Engineering team | ` |
{{#set:Feature priority=P1
|Feature rank=999 |Feature theme=Advancing Anonymity |Feature roadmap=Privacy |Feature secondary roadmap=` |Feature list=Platform |Feature project=` |Feature engineering team=` }}
Team status notes
| status | notes | |
| Products | ` | ` |
| Engineering | ` | ` |
| Security | ` | ` |
| Privacy | ` | ` |
| Localization | ` | ` |
| Accessibility | ` | ` |
| Quality assurance | ` | ` |
| User experience | ` | ` |
| Product marketing | ` | ` |
| Operations | ` | ` |
{{#set:Feature products status=`
|Feature products notes=` |Feature engineering status=` |Feature engineering notes=` |Feature security status=` |Feature security health=` |Feature security notes=` |Feature privacy status=` |Feature privacy notes=` |Feature localization status=` |Feature localization notes=` |Feature accessibility status=` |Feature accessibility notes=` |Feature qa status=` |Feature qa notes=` |Feature ux status=` |Feature ux notes=` |Feature product marketing status=` |Feature product marketing notes=` |Feature operations status=` |Feature operations notes=` }}