ESR 91 to ESR 102 Tips

[Jason Jackson]

What should organizations look out for when moving from ESR 91 to ESR 102?  For example, new features that should be configured, legacy features no longer available, etc.?

 

Jason Jackson

North Vancouver School District

[Mike Kaply]

For the Firefox 102 ESR release notes, I tried to cover everything that happened between 91 and 102.

https://www.mozilla.org/en-US/firefox/102.0esr/releasenotes/

The three big changes that might impact folks that I can think of off hand are:

1. The new print dialog. We have a policy that allows you to use the system dialog if you need to.

https://github.com/mozilla/policy-templates/blob/master/README.md#usesystemprintdialog

2. Downloaded files default to the download directory instead of /tmp and they are not deleted on exit. We have a policy to use the old behavior if necessary.

https://github.com/mozilla/policy-templates/blob/master/README.md#startdownloadsintempdirectory

3. For the ESR, we were treating JNLP as non executable. For the 102 ESR, we have a policy that allows you to enable JN:P for particular domains. It doesn't fully work yet, but it will before EOL in September.

https://github.com/mozilla/policy-templates/blob/master/README.md#exemptdomainfiletypepairsfromfiletypedownloadwarnings

The enterprise things that I know went into 102 that didn't go into 91 are:

Bug 650091 - Multiple Proxy-Authenticate headers order-dependency bug causes login popup with NTLM + Basic (pick auth schema by safety rating)

Bug 1745678 - Remove TLS 1.0/1.1 override UX

Bug 1740631 - macOS PKG doesn't properly support M1

Bug 1735806 - Specifying install_sources still allows installs from addons.mozilla.org

Bug 1755354 - Add a policy to remove "More from Mozilla" in preference (This might be a policy to look at)

Bug 1712104 - Add a preference 'print.prefer_system_dialog' to allow printing directly via the system print dialog

Bug 1773047 - Remove the `security.insecure_field_warning.contextual.enabled` pref

Bug 1738574 - Want an option to continue to use /tmp and autodelete downloads automatically opened in an application

Mike Kaply

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[Mike Kaply]

I forgot one other change.

We've changed the default behavior of Firefox to save unknown file types versus showing the open/save window.

If you want the old behavior, you can change

browser.download.always_ask_before_handling_new_types

to false.

You can read more about this change here

https://support.mozilla.org/kb/manage-downloads-preferences-using-downloads-menu

Mike Kaply