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Moderators: martimiz, Sean, Ed, biapar, Willr, Ingo, swaiba

SS3 CMS terribly slow in Firefox

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6 Posts   1039 Views


Community Member, 91 Posts

5 June 2014 at 8:58pm


When I try to edit a large (812 pages and growing) website in Firefox, the CMS hangs on loading the page in the admin-backend. The database is 10MB, and we are using the current version of SS (3.1.5).

Does anybody has the same problem or a solution for this?


Community Member, 21 Posts

5 June 2014 at 11:00pm

Edited: 05/06/2014 11:01pm

Can you answer the following questions to see if the answers help establish what the problem is:

  • Did you upgrade your website from SS 2?
  • Can you provide us with some server specs, ie resources available and software versions?
  • Does the same happen in other browsers?
  • When you say editing, can you provide a list of steps we can follow to reproduce the issue?
  • Are there any errors reported when you run a dev build?


Community Member, 91 Posts

5 June 2014 at 11:06pm

Hi bonner,

* Yes i upgraded from SS 2.4
* Check for the server specs
* In Chrome it seems a bit faster, however it is still not the optimal speed
* The problem remains already when i try to open a link like "home" to edit. The most of the pages exists of Blog posts from the Blog plugin
* There are no problems when running a dev/build (?flush=all)


Community Member, 21 Posts

5 June 2014 at 11:19pm

Thanks for the information, the only bit that could affect the speed from what I can see is the upgrade, which is dependent on what modifications were made during the upgrade. However, in order to get to the bottom of what is going we are going to need more information.

If you have firebug installed, can you go to the administration area, then open Firebug and enable the net panel. Once you have done so can you click on the home link and share the results here. This will give us a fair bit of information on what happens when you click on the link, as depending on the modules you have installed one of many things can be happening and we just need to narrow down what it is.


Forum Moderator, 1391 Posts

7 June 2014 at 10:03pm

Could be caused by the fact that this is a very large blog site. Maybe because most entries are in the second level of the SiteTree so that too many pages are preloaded to construct the SiteTree, which wouldn't normally be the case in a typical website?

This must be a known issue, because there is this module:

It handles the blog management in ModelAdmin, that is far better suited to handle large numbers of DataObjects. I've not tested it, but I think it might work, combined with excluding the blogpages from the SiteTree, so that that as well would become manageable again.


Community Member, 21 Posts

11 June 2014 at 3:28am

We have exactly 600 articles and they load fine, this is on a website which has been upgraded from 2.4.11 to 3.1.4.

The framework has not been touched, but we've extended the framework and code considerably.

There are no speed issues, and the website is huge. So I'd be interested in knowing what Firebug comes back with so we can establish the root cause of the problem.