#32013 closed task (fixed)
Verify that new WebGL extensions in Firefox 68 ESR are disabled
| Reported by: | gk | Owned by: | tbb-team |
|---|---|---|---|
| Priority: | Medium | Milestone: | |
| Component: | Applications/Tor Browser | Version: | |
| Severity: | Normal | Keywords: | ff68-esr, tbb-fingerprinting, TorBrowserTeam201910, GeorgKoppen201910 |
| Cc: | Actual Points: | 0.1 | |
| Parent ID: | Points: | 0.1 | |
| Reviewer: | Sponsor: |
Description
Similar to #26600 there are new WebGL extensions that got introduced since Firefox 60 ESR. In Firefox 65 support for BPTC and RGTC got introduced in https://bugzilla.mozilla.org/show_bug.cgi?id=1507263.
We should verify that they are disabled.
Child Tickets
Change History (2)
comment:1 Changed 2 months ago by
| Keywords: | GeorgKoppen201910 added |
|---|---|
| Resolution: | → fixed |
| Status: | new → closed |
comment:2 Changed 6 weeks ago by
| Actual Points: | → 0.1 |
|---|
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The extensions are disabled. They are instantiated in
WebGLContext::GetExtension()only after checking whether they are supported. This happens inWebGLContext::IsExtensionSupported()which is first checking whether extensions are enabled in general and returning early if notmDisableExtensionsgets set inWebGLContext::InitAndValidateGL()(mDisableExtensions = gfxPrefs::WebGLDisableExtensions();) which itself gets called early on in WebGLContext::CreateAndInitGL)`.