Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Why doesn't Quicktime Pro work in Firefox 4.x?

more options

I recently upgraded from Firefox 3.7 to 4.0.1 and have discovered that although the Quicktime plug-in works (meaning I can use Firefox to play Quicktime movies embedded in a web page), Quicktime "Pro" functionality is not working (meaning I can no longer save the movie to disc when I click on menu tab on the bottom right-hand corner of the movie, next to the control slider). This worked fine in Firefox 3.7. Does anyone know what the problem is? I'm using a Macbook Pro i5 running OS 10.6.4 with Quicktime 7.6.6. Thanks!

I recently upgraded from Firefox 3.7 to 4.0.1 and have discovered that although the Quicktime plug-in works (meaning I can use Firefox to play Quicktime movies embedded in a web page), Quicktime "Pro" functionality is not working (meaning I can no longer save the movie to disc when I click on menu tab on the bottom right-hand corner of the movie, next to the control slider). This worked fine in Firefox 3.7. Does anyone know what the problem is? I'm using a Macbook Pro i5 running OS 10.6.4 with Quicktime 7.6.6. Thanks!

All Replies (1)

more options

Finally figured it out the solution! (This only applies to Mac users.)

Firefox 3.x ran in 32-bit mode and Quicktime 7.x runs in 32-bit mode, so the two programs worked just fine together. The new Firefox 4.x, however, runs in 64-bit mode, so the 32-bt Quicktime 7.x plug-in no longer works correctly.

Luckily the fix is simple: just switch Firefox 4.x from 64-bit mode down to 32-bit mode. Here's how:

[] Close Firefox 4.0 [] Highlight the Firefox icon in the Applications folder [] Click COMMAND-i to open the Get Info window [] Click on the box marked: OPEN IN 32-BIT MODE and close the window [] Launch Firefox

You can now save Quicktime files as before, assuming you have Quicktime Pro.

[] After closing Firefox, you can un-check the OPEN IN 32-BIT MODE box so Firefox will once again run in 64-bit mode.