Not able to edit a page in confluence 3.5.7

[Ecom jira]

I am not able to edit a page and save it in firefox and chrome browser. With IE some users are able to save the page. What can be the cause of this?

Also attachments cannot be viewed in some pages which appears at the bottom of the page.

[Alex Medved _ConfiForms_]

Probably the issue is with unsupported browser version(s): https://confluence.atlassian.com/display/CONF35/Supported+Platforms

[Ecom jira]

But I use Firefox 19.0 Still I have the same issue. Earlier I was able to edit the page. I also cannot find attachments at the bottom of the page

[Alex Medved _ConfiForms_]

It is quite hard to suggest anything else without seeing the page itself... is there any Javascript errors? may be the layout (page) looks broken?