Firefox 45 Site Compatibility
Browse our compatibility notes about the changes in Firefox 45 released on . This list will be updated when a further change is made or a new regression is found, so make sure to subscribe to our site feed.
Audio & Video
Canvas & WebGL
CSS
DOM
- Regressed Submitting empty file input control results in no
Content-Type
- Affecting
File
fails when file is updated after initial readingReader .read As Text() - Affecting Loading cross-origin worker now fires
error
event instead of throwing; worker in sandboxed iframe no longer allowed - Regressed Images are not updated in some cases when
srcset
is dynamically changed - Affecting Dedicated workers no longer inherit CSP from parent document unless embedded
- Regressed Various sites are broken when third-party cookies are blocked
- Image with
id
no longer appears ondocument
unless it hasname
as well - Service Workers have been disabled in Firefox 45 ESR
- Reverted
performance
in workers is now based on the worker’s creation time.now() search
is now only onParams URL
- CSP directive
frame-src
has been deprecated in favour ofchild-src
HTML
JavaScript
Miscellaneous
Networking
Plug-ins
Privacy & Security
- Affecting Loading cross-origin worker now fires
error
event instead of throwing; worker in sandboxed iframe no longer allowed - Affecting Dedicated workers no longer inherit CSP from parent document unless embedded
- Regressed Various sites are broken when third-party cookies are blocked
- CSP directive
frame-src
has been deprecated in favour ofchild-src
- EV certs valid for more than 27 months will be treated as DV certs
- Reverted
jar
protocol support has been disabled by default