Tag: script

Firefox got real slow

One day Firefox just came to a crawl when running web pages with JavaScript. Then I found out what was causing it and how to fix it. Here’s how.

I was using the Firefox 3.6.16 web browser and it got really slow.  Unbearably so.

When I went to look at the console, it was filled with all kinds detailed of JavaScript warnings, the kind one might expect out of JSLint.  It was spending so much time checking the JavaScript code that it was barely spending time executing it.

The “culprit” was the Web Developer add-on.

Normally, the Disable / Disable JavaScript / Strict Warnings menu item is checked.  Unchecking it gives some fantastic diagnostic messages when writing code.  Forget to re-check it and regular web usage may come to a crawl.

Aside from the console being a clue, you may also see a caution sign or a red circle with a white ‘x’ in it on the Web Developer toolbar.

For normal speeds when regularly browsing, just disable strict checking.

OS X: Batch Rename from GUI

This is the third time I’ve had to go hunting how to enable batch filename manipulations for OS X. Now I’m documenting it so I don’t have to hunt this down again.

I keep forgetting about this trick, so I thought I’d post it in the event I have to ever do it again.

Part of the problem with a graphical GUI is that it’s very difficult to rename files in batches, for instance, prepending some text to a group of files.  This kind of thing is fairly trivial at the command line.

Apple has a facility to do this, but as it’s not something a regular user does often, it’s not enabled by default.  Here’s how to get all kinds of additional functionality out of OS X.

1) Open /Applications/AppleScript

2) Turn on Show Script Menu in menu bar

3) Optional: turn on GUI scripting, show library scripts, and choose where to show them.

You’ll notice up near the time in the menu bar a black scroll has appeared.

All the batch renaming and filename twiddling stuff is under the Finder Scripts.

UPDATE 19-Dec-2009: Upgrading to Snow Leopards deletes some useful scripts, specifically the Finder Scripts.

UPDATE 31-Aug-2010: The scripts live in “/Library/Scripts/Finger Scripts” and are

  • Add to File Names.scpt
    md5 4b0cd899acb19b5fc62ef2049d81a933 – 18114 bytes
  • Change Case of Item Names.scpt
    md5 af7429228be4d0e1a096092af5341c52 – 17808 bytes
  • Replace Text in Item Names.scpt
    md5 716493cab1c569953a7f40d76ed9a1f7 – 24328 bytes