[Affected versions]: Firefox 56.0a1 (2017-07-30) [Affected platforms]: Windows 10 64-bit Mac Os X 10.12.3 [Steps to reproduce]: 1.Launch Firefox with a clean profile. 2.Make sure that "extensions.webextensions.remote” pref is set to true. 3.Install the following webextension: https://addons.mozilla.org/en-US/firefox/addon/adblock-for-youtube/ . 4.Press CTRL+SHIFT+A . 5.Click on extensions. 6.Double click on "AdBlocker for YouTube™". 7.Click on the "Disable" and then the "Enable" button. [Expected Results]: The webextension options are displayed.. [Actual Results]: - The options are not displayed. - See attached Gif.

Can we test this with "extensions.webextensions.remote” pref set to false?

I retested it with "extensions.webextensions.remote” set to true/false and it only reproduces with the setting set to true. Gif for the issue is attached.

Changing title because issue is not specific to the mentioned extension. Issue is also reproducible for other extensions with the same option type(ex. https://addons.mozilla.org/en-US/firefox/addon/tineye-reverse-image-search/?src=search)

I'm not sure what's going on here, it looks like we're successfully creating a remote browser and then blowing up here: http://searchfox.org/mozilla-central/rev/bbc1c59e460a27b20929b56489e2e55438de81fa/toolkit/content/browser-child.js#354 with JavaScript error: chrome://global/content/browser-child.js, line 354: NS_ERROR_NOT_AVAILABLE: Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIWebNavigation.loadURIWithOptions] A wild shot-in-the-dark guess is that we try to load the options page before the extension has been set up so the moz-extension:// url isn't valid yet? Given enough time I could work through this but I have my hands full with other things right now, sending this over to Kris since it appears related to OOP.

Comment on attachment 8893974 [details] Bug 1385880: Part 1 - Remove WebExtensionBootstrap.js. https://reviewboard.mozilla.org/r/165046/#review170458

Comment on attachment 8893975 [details] Bug 1385880: Part 2 - Store promise returned by bootstrap startup method. https://reviewboard.mozilla.org/r/165048/#review170460

Comment on attachment 8893976 [details] Bug 1385880: Part 3 - Wait for add-on startup before showing inline options browser. https://reviewboard.mozilla.org/r/165050/#review170462

https://hg.mozilla.org/integration/mozilla-inbound/rev/f7f8579ec94e8a2ff03e5299c13381b4234517a1 Bug 1385880: Part 1 - Remove WebExtensionBootstrap.js. r=aswan https://hg.mozilla.org/integration/mozilla-inbound/rev/618f5606f763e87fa64c2eee01f168fe1f34c6bb Bug 1385880: Part 2 - Store promise returned by bootstrap startup method. r=aswan https://hg.mozilla.org/integration/mozilla-inbound/rev/8163646237aa5bc72f6414c9e73fcb4073d053eb Bug 1385880: Part 3 - Wait for add-on startup before showing inline options browser. r=aswan

https://hg.mozilla.org/mozilla-central/rev/f7f8579ec94e https://hg.mozilla.org/mozilla-central/rev/618f5606f763 https://hg.mozilla.org/mozilla-central/rev/8163646237aa

Status: RESOLVED → VERIFIED status-firefox57: fixed → verified

Tested on FF 57.0a1(2017-08-06/08) using Win 10(64Bit) and MacOS X(10.12.3). Marking as Verified Fixed on FF 57.

Too late for 56. Mass won't fix for 56.