Ublock: [Firefox] Won't block requests when moving a tab to a new window

[g3939434]

uBlock Origin v1.5.0, Firefox v43.0.2

1. Open 2 new tabs and the logger
2. Visit https://www.yahoo.com/ in the first new tab and trackers, e.g. analytics.yahoo.com, are blocked and showed in the logger
3. Move the first tab to a new window
4. Trigger the trackers by any means, i.e. hover links
5. Trackers are not blocked unless reloading the tab

[gorhill]

For the new tab, locationChangedListener is called with an about:blank URL, and then no further events, so uBO is not aware that the tab's location has changed, that it is not really about:blank.

If the destination window already exists, moving the tab to the new window won't even trigger a _location-changed_ event, resulting in all network requests from the moved tab being seen as behind-the-scene network requests.

[ghost]

@gorhill Would it be possible to apply the base settings to behind the scenes requests?

[gorhill]

Please, read the wiki -- the issue tracker is not a bulletin board.

[gorhill]

Can't reproduce the issue with the webext version of uBO. Concerning the legacy version, this is a browser bug, the browser fails to fire the expected "Location Changed" event.

[reallyuniquename]

Hey @gorhill, are there any updates on this issue?

I am on latest Firefox 52 and uBlock legacy, took me a while to figure out why I get youtube ads sometimes. Apparently moving tab between windows disables uBlock for it.

[harshanvn]

are there any updates on this issue?

As seen in the above comment by Raymond. This is a browser issue, when concerning the legacy version.
I see no point in trying to hunt down and fix for legacy browsers..