This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I read some where that resetting firefox "about:config" will boost up speed?

  • 3 replies
  • 19 have this problem
  • 2 views
  • Last reply by cor-el

more options

will changing these keys ;

browser.tabs.showSingleWindowModePrefs – true network.http.max-connections – 48 network.http.max-connections-per-server – 16 network.http.max-persistent-connections-per-proxy – 8 network.http.max-persistent-connections-per-server – 4 network.http.pipelining – true network.http.pipelining.maxrequests – 100 network.http.proxy.pipelining – true network.http.request.timeout – 300

Affect browser in a bad way

will changing these keys ; browser.tabs.showSingleWindowModePrefs – true network.http.max-connections – 48 network.http.max-connections-per-server – 16 network.http.max-persistent-connections-per-proxy – 8 network.http.max-persistent-connections-per-server – 4 network.http.pipelining – true network.http.pipelining.maxrequests – 100 network.http.proxy.pipelining – true network.http.request.timeout – 300 Affect browser in a bad way

All Replies (3)

more options

The values for some of those preferences are just plain wrong, far in excess of Firefox will do, while others may overload a web server with connections and might get you banned by the website. Until you know what your needs are and learn what each one of those prefs does and how they affect Firefox, you're better off leaving those prefs at their default values. The default values work best for 99.9% of Firefox users.

more options

And you are??? What are your bona fides to be able to say with such conviction that "those preferences are just plain wrong" and are "far in excess of [what] Firefox will do"? Your profile states you are a Forums Moderator; is that like a Community Organizer?

Modified by chesterar

more options

Just leave those network.http prefs at the default and don't increase the values.
The defaults were chosen to perform as best as possible and not cause problems with websites.
If you make changes then some websites may perform better and on others you may see the opposite and the performance decays.

(locking this old thread, please start a new thread if you have a problem or question)