- Why doesn't Platypus work with Firefox 1.5? Why don't
my old Platypus scripts still work?
Firefox 1.5 and GreaseMonkey 0.6.4 introduced substantial changes in
the security model used to keep GreaseMonkey scripts from being used
maliciously. These changes broke existing Platypus scripts and
required a substantial re-write of the Platypus extension. Platypus
0.61 works with Firefox 1.5 and GreaseMonkey 0.6.4, but
unfortunately existing Platypus scripts will not work with this new
version of Platypus. The solution is to delete your existing
Platypus scripts and re-create them using the new version of Platypus.
- Why does my saved script only work sometimes? ... or only
partly? ...or incorrectly? ...or stopped
When a script stops working, only works sometimes,
changes the wrong things, or only works partly, it usually indicates that the
web page it is modifying has changed significantly since the script was
Console) you'll probably see messages from Platypus complaining that it
couldn't find something on the page.
This may just mean that the web
site has undergone an update since you wrote the script, and the solution
might be to delete the script and use Platypus to recreate it. The new
script will be based on the new structure of the web site, and that may be all
that is needed.
Some web sites, though, may regularly change their
structure. In this case, any Platypus script you create that works on a
changing part of the web page is doomed to fail.
Your main defense
against this problem is to make your changes at as high a level as
possible. For example, if a site has an <IMG> inside a <DIV>
inside a <TD>, you're better off deleting the <TD> than deleting
the <IMG>. In general, when you want to change a part of a web
page, use the "Up arrow" to find the highest level of structure that you can
use. The higher the level of structure, the less chance it will
- Why do Platypus scripts require Platypus and Greasemonkey to be
installed? It would be better if they would work on their
First of all, Greasemonkey provides the mechanism for
user scripts. Greasemonkey is the part that sticks your script into a
web page and gives it the chance to modify the page. User scripting
might one day be built into Firefox/Mozilla, but at the moment there is no
user scripting without Greasemonkey (or some other equivalent
As of Platypus 0.60, you don't have to have
Platypus installed to make use of a Platypus script. Just Greasemonkey.
- Why should I use Platypus instead of something like Rip?
is great extension, and if all you need is to remove parts of a
web page, then it's a fine choice. That said, Platypus has some unique
First and obviously, Platypus provides a lot of functionality
that Rip does not. If you might ever want to do anything more than
remove page elements, then you might want to use Platypus for its greater
Less obviously, Platypus doesn't just change the web
page, it produces a script that changes the
page. You have access to that script, which means you can share it with
other people, modify it, use it as part of another tool, etc. That's a
powerful idea. Of course, Greasemonkey itself is even more powerful in
this aspect, but Platypus makes scripting accessible to people who aren't
The platypus project can be contacted through the mailing list or the member list.
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