April 24, 2009 at 19:25
· Posted in firefox, greasemonkey

Greasemonkey logo
Funny, just today I discovered a really old article by Computer Totaal (in Dutch) about a couple of Greasemonkey scripts: Websites aanpassen met Greasemonkey (August, 2007).
Two of my greasemonkey scripts are discussed:
- Kilometerdeclaratie (Dutch only, outdated)
- Ikea Availability Check (as international as Ikea itself, recently updated)
The first script used the route planner of a local provider to batch process distances between two addresses (based on Dutch Postal Codes), useful for mass reimbursements of work related trips by car. This script is no longer maintained, a mashup based on the Google geo API makes more sense now.
The second script runs on every product detail page of the Ikea site.If your country or region has more than one ikea store, availability and stock data is automatically retrieved from each separate store and displayed in a table all at once.
Most international Ikea sites are built on the very same content management platform, so it works for the Dutch, Russian and US sites equally well. Install it here: Ikea Availability Check.
Nice discovery, nearly two years after…
Popularity: 11%
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Tags: firefox, greasemonkey, ikea, user script
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March 3, 2009 at 17:46
· Posted in extension, firefox
It’s that time of the Firefox release cycle again: we’re at the verge of the 3.1 release, code named Shiretoko. The betas are getting pretty stable and usable for everyday use.
This usually means also that many of our tried and trusted add-ons stop working, because they have not been marked compatible with the latest Firefox version yet.
So for your convenience links to add-ons with incremented maxVersion number in their install manifest.
These are not changed in any other way than setting the maxVersion number – but you should’nt trust me and verify for yourself!
Popularity: 10%
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Tags: add-on, firefox, livehttpheaders, Mozilla Firefox, openprofilefolder
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February 9, 2009 at 17:06
· Posted in extension, firefox, osx, review

Image via Wikipedia
So you want to peek under the hood of all those mysterious Firefox 3.x databases? Easy does it: just install SQLite Manager in… Firefox itself (for easy installation visit SQLite Manager on the AMO site).
This add-on can be activated from the Tool menu and opens in a separate window. By default, a shortcut to your profile directory is provided, but there is nothing preventing you from opening other sqlite3 databases when you’re done staring at the places.sqlite database.
On Mac OSX there is lots to explore about your Mail.app settings in your ~/Library/Mail directory, e.g to optimize mail performance. Just be careful that you don’t make any changes on the live database (you work on a back-up copy, right?).
Popularity: 32%
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Tags: add-on, database, firefox, mozilla, sqlite, sqlite3
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July 28, 2008 at 12:08
· Posted in extension, firefox, webdev
It is easy to get lost if you’re working with many development profiles in FIrefox: what profile is currently running? There is no easy way to find out from the browser.
So… a search on addons.mozilla.org brought up open-profilefolder which was almost what I wanted, except it has not been updated for Firefox 3.0.
So here my version with the following changes:
- installs in Firefox 2.0.x and 3.0.x
- shows the name of the current profile folder in the Tools menu
Popularity: 42%
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Tags: add-on, extension, firefox, profile
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May 12, 2008 at 14:57
· Posted in extension, firefox, webdev

Just a quick followup to my blog post about Firefox 3.0 and LiveHTTPheaders.
I introduced a quick and dirty fix, which made it possible to install the add-on on the newest beta versions of Firefox. Now there is the official update, go on and install it right away!
Here’s the new release annoucement: LiveHTTPheader 0.14 supports firefox 3.0.
Popularity: 59%
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Tags: extension, firefox, HTTP, livehttpheaders
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May 6, 2008 at 13:50
· Posted in extension, firefox
If you’re developing add-ons for Firefox, you likely know the Extension Developer’s Extension by Ted Mielczarek.
It appears that this extension is perfectly compatible with the current Firefox 3.0 beta releases. However, as is the case with Live HTTP headers, the Developer’s Extension does not install out-of-the box (observed for Firefox beta 5). This is because Firefox now refuses to install extensions which specify a non-secure URL for
auto updates.
The fix is really easy:
- download the extension
- uncompress (using zip)
- edit the file install.rdf (top level): remove the em:updateURL property
- zip the whole shebang again, name the file somefile.xpi
- now Firefox will install the extension if you drop the file on an open window.
Four your convenience, you can download the modified extension here: extensiondev-030-no-update – but you really shouldn’t, download the original and make the modification yourself instead!
@Marc K, did you see this article: http://kb.mozillazine.org/Extensions.checkUpdateSecurity
My guess is that this property is not available at all by default, so you need to add te property yourself in the about:config screen.
To do so, right click anywhere in the property list, select “New” => “Boolean” and paste in “extensions.checkUpdateSecurity”. Set its value to false and you should be there.
I haven’t tried this myself…
Popularity: 60%
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Tags: developer extension, firefox, RDF, Ted Mielczarek, xpi
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