601943 - Firefox Sync opens multiple tabs in "List all Tabs" drop down menu, when loading/refreshing a webpage.

Status: RESOLVED WONTFIX

(Firefox :: Sync, defect)

Description

[r_daniels]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10 (.NET CLR 3.5.30729)

Firefox Sync opens multiple tabs in "List all Tabs" drop down menu, when loading/refreshing a webpage. Multiple tabs appear at the top of the list, all saying "Loading...". When clicking on one of these tabs, Firefox redirects me to a different tab that's already opened.
This happens when loading any webpage. 
Also notice performance degradation due to a spike in CPU usage.
I'm guessing Sync is trying to sync everything, with every new webpage opened.

This happens to both of my computer using Sync (at home and at work).

Reproducible: Always

Steps to Reproduce:
1. Have multiple tabls already opened in Firefox
2. Open a new webpage
3.
Actual Results:  
Computer slows down due to CPU spike.

Comment 1

[Philipp von Weitershausen [:philikon]]

In what way is this problem related to or caused by Sync? Does the problem disappear when you disable Sync? Also, could you please attach a screenshot exhibiting the problem?

Comment 2

[r_daniels]

Attachment: computer at home. only a few tabs opened and not loading a webpage

Comment 3

[r_daniels]

Attachment: home pic #2

This is actually showing 2 lines both for "Tabs from other computers".
Previously I saw this same behaviour but with 8 lines (no screenshot though).

Below that, and first tabs listed are showing 3 "Loading..." lines. There are no tabs at that location and nothing is being loaded.

Comment 4

[r_daniels]

Comment on attachment 481203 [details]
computer at home. only a few tabs opened and not loading a webpage

3 "Loading..." lines at top, but those tabs don't actually exist.

Comment 5

[r_daniels]

Attachment: work pic

10 "Loading..." lines at top, but those tabs don't exist.

Comment 6

[r_daniels]

Added 3 screenshots. I believe this is related to Sync because when Sync is disabled this behaviour is gone.

Comment 7

[Philipp von Weitershausen [:philikon]]

(In reply to comment #6)
> Added 3 screenshots. I believe this is related to Sync because when Sync is
> disabled this behaviour is gone.

Ok, that makes sense ;). What version of Sync are you using?

Comment 8

[r_daniels]

Screenshots were taken using version 1.4.4.
But I updated to 1.5 and still having the same issue:
Multiple "Loading..." entries, as well as multiple "Tabs from other computers" (currently I have 2).

Comment 9

[Mike Connor [:mconnor]]

Still an issue on Fx7 or later?  I'm guessing this is the old addon UI code.

Comment 10

[Allison Naaktgeboren :ally]

I don't think this bug is valid in recent ffx versions (I don't think that UI even exists anymore). 

QA, could you please verify?

Comment 11

[Tracy Walker [:tracy]]

right, this doesn't exist in modern versions of Fx that instead have about:sync-tabs