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Firefox will open 4 or 5 tabs fine, but then will not load any further websites after those first 4 or 5, or allow you to refresh one of those first tabs -- including about:config and the addon page

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  • Last reply by cor-el

macadamizer
macadamizer
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Firefox 5 worked fine. I installed Firefox 7, and when I ran it, tabs would just say "connecting to..." and hang. Restarting did not help. Websites open fine in IE and Chrome. Disabled all firewalls and antivirus, did not help. Uninstalled and reinstalled Firefox 5, everything worked fine again. This was using Vista 64-bit.

Upgraded to Windows 7, uninstalled Firefox 5, installed Firefox 7, had same problem. Uninstalled Firefox 7 completely (including the profile information, I saved that information in another folder), restarted computer, and installed Firefox 7 using a completely clean profile. Did not install any add-ons, checked to make sure all plug-ins were up-to-date, and updated plugins.

Now when I start Firefox, I can load 3 or 4 or 5 tabs fine -- after those first few tabs are open, I cannot open or refresh any other tabs -- including about:config and the add-on manager -- I have to restart Firefox. The hangup doesn't appear to be related to what websites I am attempting to open, but it looks like the number is the problem. I have run through all of the FAQ procedures, including changing the max number of network connections to 48, and the problem does not seem to go away.

As a side note, I had this same problem when I tried to go from version 5 to version 6 as well. Version 5 is the most recent version that worked on my system.

Firefox 5 worked fine. I installed Firefox 7, and when I ran it, tabs would just say "connecting to..." and hang. Restarting did not help. Websites open fine in IE and Chrome. Disabled all firewalls and antivirus, did not help. Uninstalled and reinstalled Firefox 5, everything worked fine again. This was using Vista 64-bit. Upgraded to Windows 7, uninstalled Firefox 5, installed Firefox 7, had same problem. Uninstalled Firefox 7 completely (including the profile information, I saved that information in another folder), restarted computer, and installed Firefox 7 using a completely clean profile. Did not install any add-ons, checked to make sure all plug-ins were up-to-date, and updated plugins. Now when I start Firefox, I can load 3 or 4 or 5 tabs fine -- after those first few tabs are open, I cannot open or refresh any other tabs -- including about:config and the add-on manager -- I have to restart Firefox. The hangup doesn't appear to be related to what websites I am attempting to open, but it looks like the number is the problem. I have run through all of the FAQ procedures, including changing the max number of network connections to 48, and the problem does not seem to go away. As a side note, I had this same problem when I tried to go from version 5 to version 6 as well. Version 5 is the most recent version that worked on my system.

Chosen solution

The default of the pref network.http.max-connections has been increased from 30 to 256 in Firefox 6+ versions.

Try to decrease the value of the pref network.http.max-connections from 255 to a setting like 30 as used in Firefox 3 versions.

See also:

Read this answer in context 👍 2

All Replies (6)

Andrew
Andrew
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Can you try Aurora - download it from http://www.mozilla.org/en-US/firefox/channel/

And let us know how it works.

macadamizer
macadamizer Question owner
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Thanks feer56. I uninstalled Firefox 7, and downloaded and installed Aurora, and it appears to have the about the same behavior -- I didn't import any bookmarks or anything, I used the Google bar to navigate to CNN and Yahoo, then opened up a bunch of links from Yahoo into new tabs. CNN and Yahoo opened pretty quickly, 2 of the tabs from links opened after a minute or two, the other couple of tabs seem to be stuck -- so it pretty much looks like it is working the same way on my system as 7 did. Chrome continues to work fine (I am entering this message from Chrome).

cor-el
cor-el
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  • Top 10 Contributor
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Seçilmiş Həll

The default of the pref network.http.max-connections has been increased from 30 to 256 in Firefox 6+ versions.

Try to decrease the value of the pref network.http.max-connections from 255 to a setting like 30 as used in Firefox 3 versions.

See also:

macadamizer
macadamizer Question owner
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Hi cor-el,

I tried your fix with Aurora, now it seems to be working okay. I tried the same fix with 7 earlier, and it didn't seem to do anything. I am going to play with this setting with Aurora for a while and see if it continues to work.

daleeatsrice
daleeatsrice
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The changes to about:config work for me, but everytime I restart Firefox they've changed back. Any ideas?

cor-el
cor-el
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  • Top 10 Contributor
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See:

Make sure that you do not have a file user.js in the Firefox Profile Folder