Tech Specs and Info

To take advantage of the rich repository of resources on FOSSweb, your computer needs to meet the minimum technical requirements outlined below.

NOTE: To ensure good communication with FOSSweb support, districts should whitelist the domain: and unblock any emails coming from

FOSSweb and FOSS Multimedia applications are supported on the following configurations:

Operating Systems PC Windows 7, 8, or higher  
Mac OS 10.8 or later

 Most recent versions*


* Very recent updates may not have been tested yet.

Browsers Chrome, recent versions (v. 47.x or later)

If you are having trouble viewing FOSSweb content in a particular browser, if possible, try a different browser to see if content format is improved.

When using a browser on an iPad to view an interactive Student Resources Book, make sure pop-ups are permitted. You can change this setting for Safari in the "Settings" app. Read more under Tech Help.

Firefox, recent versions (v. 45.x or later)
IE, 9.0 or later

Safari, recent versions

Flash Recent versions

Not required for all K-6 modules and Middle School courses.

Test your browser's version of Flash (not for mobile devices).

Adobe Reader Version 8 or higher Required to download and view duplication masters and other teacher resources.
iTunes Version 7 or later Necessary to download audio stories from iTunes U in CA Edition, though not required to access audio stories through FOSSweb.


If your school has a firewall, you may be unable to view the FOSS videos. If you click on several FOSS videos and none of the videos play, it is likley a firewall issue.

For FOSSweb videos to work, please ensure that your school has the following sites added to the firewall whitelist and that both .mp4 and .mp3 filetypes are unrestricted through

  • *
  • *

You may also need to ensure that port 80 and port 1935 are open for

If you are still having trouble after going through this information, send an email to for any questions.