Created attachment 8662185 [details] Screenshot shows view with Zoom = 30 % Steps how to reproduce with German SeaMonkey 2.38b1 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0 Build 20150904215228 (Classic Theme) on German WIN7 64bit: 1. In browser go to <https://support.apple.com/en-us/HT201222> (if you want with newly created profile) » Brown background heading line looks normal Bug: Gigantic size of characters for following text 2. To URL location input lint type "about:config" → Confirm Warning → search for "font.minimum-size.x-western" → change setting in found hit from 10 to 0 (Unser Ant found this at mozilla.support.seamonkey "Lots of huge stuff on Apple's web pages? Found its cause...") » Now page looks normal Additional info: a) Page View was still ok with EN-US SeaMonkey 2.26 (Portable) Gecko/20120604 Firefox/13.0 Build 20140428215944 ( Classic Theme) on German WIN7 64bit SourceStamp=205f9a8e2840 b) Already reproducible with EN-US SeaMonkey 2.33.1 (German Language pack) Gecko/20100101 Build 20150321194901 (Classic Theme) on German WIN7 64bit c) No Problem on that page with IE11 d) No problem on that page with FF 43.0a1 (2015-09-16) (what has font.minimum-size.x-western = 0 as default) e) Problem might be caused by page, but may be with changed default "font.minimum-size.x-western" we might avoid such problems Are any reasons known why we have "10" as default?
f) Minor because not many pages seem to be affected
g) I did not find a DUP with <https://bugzilla.mozilla.org/buglist.cgi?cmdtype=dorem&remaction=run&namedcmd=DUPs1205534&sharer_id=41036&list_id=12553610>
Is this a bug in the browser or Apple web site's fault?
@Rainer: Here with the SeaMonkey 2.35 64 Bit (Linux) "font.minimum-size.x-western=" is set to "0" at "Standard", the Apple-Website works normal here. But i see, that the Site has a lot of errors in CSS and HTML!
(In reply to Michael Speier from comment #4) (In reply to Ant from comment #3) e): Probably mainly a problem with wrong HTML / CSS on that web page. But a browser should be fault-tolerant, and we will have to check whether that goal can be reached better with "font.minimum-size.x-western=10" or "font.minimum-size.x-western=0"? h) And this one might be INVALID or WFM: For report I did an additional test with a Profile I created few days ago with a SM version I can't remember to test an autocomplete-issue, and this profile has default = 10. But a newly created profile from SM 38 has default 0 and does not cause the problem. I will do some further investigation
My results in user report might have been nonsense, currently I can't reproduce a default "font.minimum-size.x-western=10" for newly created profiles with 2.33.1, 2.35, 2.38b1 (all: WIN7). So INVALID for now. But I can't be sure that there really is no problem at all because of the nearby newly created test profile what hat "font.minimum-size.x-western=10". s @all: Please feel free to reopen this Bug if you can reproduce the problem with a newly created user profile, current SeaMonkey version and a current OS and if you can contribute a step by step instruction how to reproduce the problem reliably.
According to the W3C test tool, the cited Web page has 17 HTML errors and 108 CSS errors. No one should expect Gecko to render such a page without problems.