Rightclick on Previous Page-Button / CRTL+Mousedrag on Tab to duplicate does not work sometimes




Networking: Cookies
3 years ago
9 months ago


(Reporter: bbBowser, Unassigned)


43 Branch
Windows 10

Firefox Tracking Flags

(Not tracked)


(Whiteboard: [necko-backlog])



3 years ago
User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36

Steps to reproduce:

Opened Preferences and disabled "accept cookies", then opened a newtab via "+"-Button and entered a website.

This is a fresh firefox 43.0.4 x86 stable installation on windows 10 x64, but was a problem since i first clean-installed windows 10 on this machine. I tested this without any additional changes or addons installed.

Actual results:

If the website is for example "www.der-betze-brennt.de" the duplicate tab CRTL+mousedrag does not work on this tab. This also happens on pages like "moonsault.de" or "tvtv.de" but not on "t-online.de" or "ebay.de" (just some random sites from my favorites). The "extended history" via right-mouse on back-button does not appear either on this tab.

If i re-enable cookies, the still opened tabs work as expected. Re-disabling does not effect the opened tab, but the weird problem explained above affects any additional tabs.

Expected results:

CTRL+Mousedrag should duplicate tabs, like always. The "extended history" via right-mouse on back-button should appear.


3 years ago
OS: Unspecified → Windows 10
Hardware: Unspecified → x86_64
I've managed to reproduce this on the latest release(43.0.4) and latest Nightly(46.0a1). This is correctly works on some web pages, but not all of them. On pages that this bug reproduces, Chrome works as expected.

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0
Build ID: 20160105164030

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0
Build ID: 20160113141333

Considering this, I will mark this issue as New and assign the appropriate component.
If anyone considers that the component is not the right one, please change it to a more appropriate one.
Component: Untriaged → Networking: Cookies
Ever confirmed: true
Product: Firefox → Core
Whiteboard: [necko-backlog]
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