firefox get slower over time to the point of being unresponsive




7 years ago
7 years ago


(Reporter: giunta.gaetano, Unassigned)


10 Branch
Windows 7

Firefox Tracking Flags

(Not tracked)




7 years ago
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2
Build ID: 20120215223356

Steps to reproduce:

In normal FF usage for a couple of days without closing it, it gets slower and slower. After a restart of the application, things get back to normal.

This behavior is much worse when using Firebug to analyze (average-complexity) websites: opening 2 tabs with firebug and jumping between net and html panels, selecting text in the html panel, reloading pages => FF soon gets slow to the point of being unusable

FF version: 10.0.2 on win 7 64bit
Addons: Firebug, JsonView, Lazarus, AdBlock+, Yslow, Sage++, dictionaries
Do you see a high memory usage in about:memory ?
Note: Firebug is a third-party extension and bug with that extension should be reported directly to the firebug team.

Comment 2

7 years ago
At startup, vsize is in the range of 250-300MB. When things start to get a "slow" feeling, it's about 1GB. The machine has 8GB ram btw.

I know firebug is a 3rd party tool, but so far I can not pin down the slowness exclusively to using it - will try to disable it for a while and see if it helps...

Comment 3

7 years ago
After a couple of days running without firebug, no slowness or memory leaks detected. I think this bug can be closed
Thank you
You may< want to contact the Firebug developers.
Last Resolved: 7 years ago
Resolution: --- → WORKSFORME
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