<div dir="ltr"><div><div><div><div>Hi,<br><br></div>I use the Tree Style Tab extension with Nightly. The extension isn't signed so I have to set xpinstall.signatures.required to false for it to work, as explained in these articles:<br><br>- <a href="https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox?as=u&utm_source=inproduct#w_what-are-my-options-if-i-want-to-use-an-unsigned-add-on-advanced-users">https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox?as=u&utm_source=inproduct#w_what-are-my-options-if-i-want-to-use-an-unsigned-add-on-advanced-users</a><br><br>- <a href="https://wiki.mozilla.org/Add-ons/Extension_Signing">https://wiki.mozilla.org/Add-ons/Extension_Signing</a><br><br></div>However, I just updated to the latest Nightly and Tree Style Tab was disabled. After some fiddling, I discovered that changing xpinstall.whitelist.required to false was required for it to work.<br><br></div>Is this change intentional? I found it surprising and confusing. If it is intentional, perhaps the documentation should be updated.<br><br></div>Nick<br></div>