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what is the difference in x64 and x86?

Penna
Penna
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I updated to 55.02 and it installed a second firefox instead of updating the old. I had one that said x64 and one that said x86. I assumed that x86 was the new install since my computer is 64bit and unistalled the one that said x86 because the program files were labeled the same. However it was not the new install but the one that had been updated. Now it is really slow. how do I get back to the old one?

I updated to 55.02 and it installed a second firefox instead of updating the old. I had one that said x64 and one that said x86. I assumed that x86 was the new install since my computer is 64bit and unistalled the one that said x86 because the program files were labeled the same. However it was not the new install but the one that had been updated. Now it is really slow. how do I get back to the old one?

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jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
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You're right that x86 indicates the 32-bit version and x64-indicates the 64-bit version. I don't know what's going on with the updater; I thought you could only switch between 32-bit and 64-bit by downloading and running a new installer.

Could you take a look at this article to see whether anything here helps: Quick fixes if your Firefox slows down.