User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050920 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20060109 Firefox/1.6a1 On the page http://svn.twiki.org:8181/svn/twiki/trunk/templates/view.pattern.tmpl text between the lines starting with %TMPL:P{"topicinfo"}%%TMPL:END% and %TMPL:DEF{"topicinfo"}%... is not rendered. Still, you *can* find and select that text and copy and paste it into a text editor window to read it. Viewing the source, some of the text is also not appearing. Reproducible: Always Steps to Reproduce: 1. Open URL 2. Search for "Backlinks" Actual Results: Parts of the page are highlighted. But these parts are empty and contain no content, no text at all. Expected Results: Text on the page should be displayed. Download the page with "curl" if you want to see the "raw" data and HTTP header information.

Tested User Agents which *fail* Firefox Nightly Build Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20060109 Firefox/1.6a1 Firefox 1.5 Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 User Agents which do *not* exhibit this bug: Mozilla 1.7.12 Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050920

This is not a duplicate of bug 265559 as that bug talks about "uncovering" invisible text by selecting it. That technique does not work here.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 WFM on Linux with Firefox 1.5. The text you mention is all on one long line, but I can see that just fine (it looks the same in a text editor). View source shows everything as well.

Strang! This is how my Firefox renders the page. Why is it missing the _long_ line?

Can you try this in safe mode and/or with a new profile (just to make sure that this isn't caused by a buggy extension or theme)? http://kb.mozillazine.org/Safe_Mode_(Firefox) http://kb.mozillazine.org/Profile_Folder

I remember seeing a bug about it, but I couldn't find it. All I could find were bug 280104 and bug 298472.

I was thinking about bug 92193 probably (thanks to ElZorro on IRC for finding that). That bug talks about thousands of characters, while your long line appears to only have 933 chars.

Following Elmar's advices: Starting Firefox with a freshly created profile -> the line is displayed. Starting Firefox with my user profile in save-mode -> the line is NOT displayed. So can we rule out installed extensions as cause for the problem?

Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9a1) Gecko/20060219 Firefox/1.6a1 ID:2006021908 Works for me. As it still happens when running in safe mode, we can rule out extensions, but as it doesn't happen with a new profile, it must be something in your profile. Are there any unusual-looking files in the profile where it doesn't work? Anything dissimilar to the profile on which it works?

A diff between the "faulty" and a new profile reported the following files to exist only in the "faulty" profile folder one: bookmarkbackups/bookmarks-2006-01-10.html (several of them) downloads.rdf extensions/{c45c406e-ab73-11d8-be73-000a95be3b12} extensions/{e6e0272b-329d-4ac1-95a8-5b044337345f} hostperm.1 localstore-safe.rdf lock signons.txt and quite a couple of files differ: Cache/_CACHE_MAP_ XUL.mfasl bookmarks.html (and other similar files) cert8.db cookies.txt extensions.cache extensions.ini extensions.rdf formhistory.dat history.dat key3.db localstore.rdf mimeTypes.rdf prefs.js search.rdf secmod.db Which ones can I delete without hampering startup?

You should probably follow the standard diagnostic from here on. (http://kb.mozillazine.org/Standard_diagnostic_%28Firefox%29)

I found the parameter which makes the line disappear: In "Edit -> Preferences", there is the "Content" tab displaying the Font & Color settings. Click on advanced. If I set the "Monospace font" to a size of 15 or more, the line disappears. This is independent of the font that is used to render the text. If I set the font size to 14 or below or decrease the font size using Ctrl+-, the line is visible. This is Firefox 1.5.0.1 on Linux: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.1) Gecko/20060124 Firefox/1.5.0.1

Works fine for me with any font size, but I think it's about time this was marked as NEW.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3 I still see this problem on current release of FF.

I also see this problem on latest-trunk Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20060517 Minefield/3.0a1

Is anyone still seeing this on a recently nightly since bug 237085 was fixed?

(In reply to comment #16) > Is anyone still seeing this on a recently nightly since bug 237085 was fixed? Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20060813 Minefield/3.0a1 I still see this. The bug depends on Firefox's font settings: - I don't see this with a new, clean profile. - The bug appears soon as I change the Monospace font size to 15 or more. (Preferences -> Content -> Fonts -> Advanced)

Interesting. Thanks. I'll note that on the other bug. Maybe it's "mostly fixed", but something's not quite right yet.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.1) Gecko/20061208 Firefox/2.0.0.1 I am not seeing this bug any more after updating to Debian 4.0 (Etch).