Can Safari's download popover window be made wider?
Original Workaround #1:

The first one here has got the advantage to use only one Automator action and allows quite precise settings of the resulting Safari-owned window. Its end results are a "service" in Safari's menus plus a keyboard shortcut.These components are involved:


Safari's "Download.plist" (in: Library/Safari)
A shell script running cat &amp; sed, filtering the plist-file's input into "Downloads1.html"
An Html file "Downloads2.html" holding Html tags of your choice (w/o finishing tags: &lt;/...)
An AppleScript containing a "do shell script" command, "telling" Safari to open an
... Html file "Downloads.html", generated by shell script, in order to at last get …
Automator to place a workflow in Safari's "Services" menu.


This code runs as an Automator Service (without "run" commands it's plain AppleScript):

on run {input, parameters} 
 -- [Only if needed, place: "LANG=C; LC_CTYPE=C; LC_ALL=C;" in front of "cd"]

    do shell script "cd ˜/Users/[myName]/Library/Safari/;
             rm Downloads.html;
             cat Downloads.plist | sed -n ' { s/.*Downloads/&lt;p&gt;D`load =&gt; /; ¬
                     s/.*Trash/&lt;p&gt;Trashed =&gt; / ; s/.*Movies/&lt;p&gt;Movies =&gt; /; ¬
                     s/mp4.*/mp4&lt;p&gt;/ p; }' &gt; Downloads1.html';
             cat Downloads2.html Downloads1.html &gt; Downloads.html;"

    tell application "Safari"
        make new document at end of documents with properties ¬
            {URL:"file:///Users/[myName]/Library/Safari/Downloads.html"} 
        set bounds of window 1 to {700, 62, 1280, 450} 
    end tell 
    return input 
end run


(The shell script and "make new document…" are meant to be one liners each.)

Integrated are two "filters" to the sed part (.*Movies &amp; .*Trash) so my browser window looks like this (you may edit these filters or/and add Extensions to your needs):

+----------------------- Toolbar -------------------------+
|                                                         |
|  D'load =&gt; /Some_sinster_TV_series_S02E01_15.11.21_00-  |
|  40_BBC3_93_TVOON_DE.mpg.HQ.avi.otrkey                  |
|                                                         |
|  Movies =&gt; DS9.4.07_Little_green_men.mp4                |
|                                                         |
|  Trashed =&gt; /DS9.3.09_Defiant.mp4                       |
|                                                         |
|  Trashed =&gt; /DS9.3.07_Civil_Defense.mp4                 |
|                                                         |
+---------------------------------------------------------+


(Those leading slashes suck… hard to filter out, though.)


The commented out second line may be needed, or may not…
Replace [myName] with your own user name.
To use this code as "service" in Safari, you have to paste it inside a "Run AppleScript" field in automator. Save it as "workflow".
You can then create a shortcut (e.g.: opt-cmd-d) that will run it instantaneously (System-Prefences / Keyboard / Shortcuts / Services).
My solution is not really sophisticated, but I learned (glimpsed) a lot about sed, awk, cat and AppleScript/Automator.