Background Tabs not loaded after Update to FF 33




4 years ago
2 years ago


(Reporter: mcmics, Unassigned)


33 Branch
Windows 8.1

Firefox Tracking Flags

(Not tracked)



(1 attachment)



4 years ago
Created attachment 8504990 [details]
Firefox Support_20141014.log

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0
Build ID: 20141011015303

Steps to reproduce:

After Update today to FF 33
1. open link in other tab
2. new tabs open but current still displayed
3. New Tab not load the page. IF I go to the tab and click refresh it Works.

A Right-click on the inactive Tab also not works. Only if tab is Visible it works

Actual results:

Tab not loading in backgorund

Expected results:

Tab load in background


4 years ago
Duplicate of this bug: 1082809

Comment 2

4 years ago
on second computer with new profile it works.
I will check what is needed to reproduce this.

Comment 3

4 years ago
If it works with a clean profile, try in safe mode on your current profile:

In addition, try to remove the browser cache (or manually in about:cache, section "disk").

Comment 4

4 years ago
after researchi the problem i have found the problem.
I have an pinned tab( which reloads data in background. The reload call fail or runs very long and so every other tab is not loading.

I I click stop loading or remnove the tab all other tabs are loaded correctly.

It seems that the Ajax Psh to server of the pinned tab reached a number of allowed connections ant othe tabs can get not connection.

With FF prior to 33 it works fine.

I Think that any change to the tab / connection management has a side effect on this.

Comment 5

3 years ago
User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:46.0) Gecko/20100101 Firefox/46.0
Build ID: 20151230030234
Nightly Version: 46.0a1

Thanks for taking the time to report this issue.
I tested this issue in the current version and unable reproduce. Are you still having the same issue in the latest version ? Is there any specific sites that needs to be opened in the tabs ? I used this site ( with some other links. Thanks
Component: Untriaged → Tabbed Browser
Flags: needinfo?(mcmics)

Comment 6

3 years ago
Closing as incomplete due to lack of response from the reporter. If the issue still reproduces in the latest version, please feel free to reopen it. Thanks
Last Resolved: 3 years ago
Resolution: --- → INCOMPLETE


2 years ago
Flags: needinfo?(mcmics)
You need to log in before you can comment on or make changes to this bug.