stoically

Thanks. That seems DuckDuckGo-specific (and different from OPs issue), because they redirect on click to a page that contains > function ffredirect(){window.location.replace('https://google.com/search?hl=en&q=foo');}setTimeout('ffredirect()',100); Hence TC sees two requests to google and...

Would be useful indeed. Might be worth to check other container and/or tab grouping addons, they might have such feature already.

Sorry for the late reply. Do you by chance still experience the bug or have a backup from the profile state? If so, a storage export would be helpful: [debug...

Unfortunately not possible yet. It could be done by providing an "echo API" in the background script and make it accessible via a combination of https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/sendMessage & https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/onMessage.

Similar to https://github.com/stoically/temporary-containers/issues/523, without Add-ons being able to get the configuration value of `browser.tabs.loadInBackground` this can't be supported directly and would need some preference in TC instead.

Since TC doesn't interfere requests once they load in a temporary container, an UA switcher should keep working. Did you try in a fresh profile with just those two Add-ons?

This would require Add-ons to be able to read the `browser.tabs.insertRelatedAfterCurrent` configuration, which I think is not possible. Only workaround would be to make it configurable in TC itself by...

Could you elaborate what you mean?

I want to avoid adding full-blown permanent container management, but it might actually have a place in the rule-based isolation UI/UX (since e.g. excluding permanent containers is already a thing...

Might be related to #371 - could you try with sync in MAC disabled?