为提升您的使用体验,本站正在维护,部分功能暂时无法使用。如果本站文章无法解决您的问题,您想要向社区提问的话,请到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 提问,我们的支持社区将会很快回复您的疑问。

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解

i want to roll ff back to 3.0, 4.0 and up is taking up to much space to run. since i have updated to 5.0 the problem is killing my laptop and i liked how well 3.0 ran, it didnt max out my cpu like 4.0 and up does.

more options

firefox is using up to 90% of my PCU on my laptop. I spend more time twiddling my thumbs waiting for things to load or i watch my laptop crash from over heating. I did not have this problem with 3.0 and would like to go back to it, how do I roll back firefox to 3.0 so my laptop doesnt burn up ? i run vista on my laptop.

firefox is using up to 90% of my PCU on my laptop. I spend more time twiddling my thumbs waiting for things to load or i watch my laptop crash from over heating. I did not have this problem with 3.0 and would like to go back to it, how do I roll back firefox to 3.0 so my laptop doesnt burn up ? i run vista on my laptop.

所有回复 (1)

more options

In case your Firefox profile became damaged during the upgrade, or add-on is causing the problem, you could test whether a new blank Firefox profile cures those ills.

First, I recommend backing up your Firefox settings in case something goes wrong. See Backing up your information. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

Next, close Firefox and fire up the profile manager to create a new profile: Managing profiles.

If that tests out, you can import your bookmarks and move your saved passwords over from your problem profile to the new profile. Recovering important data from an old profile.

---

If that fails, here's the process to roll back:

First, I recommend backing up your Firefox settings in case something goes wrong. See Backing up your information. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

Next, download and save Firefox 3.6 to your desktop for future installation. http://www.mozilla.com/firefox/all-older

Close Firefox 5.

You could install Firefox 3.6 over it (many have reported success) or you could uninstall Firefox first. If you uninstall, do not remove your personal data and settings, just the program.

Unless you have installed an incompatible add-on, Firefox 3.6 should pick up where you left off. If there are serious issues, please post back with details.

Note: I haven't actually tried this myself!