This could be a great browser, but it is the most aggravating browser. Why? Because every couple of days (seriously) there is a new patch which jumps to the middle of your screen no matter what project you might be working on... FireFox people get your release together before you release it as stable. If you don't mind seemingly daily popups, go for it.

This version I have been having various issues, Facebook keeps hanging, sometimes it doesn't load othertimes it loads but I can't click on anything.Works fine on camino, roccat, safari and chrome.

Second when a youtube video gets to about 5 seconds for finishing the whole browser freezes up and I have to relaunch it.

Thirdly sometimes when I close Firefox is doesn't save my open tabs which is VERY annoying.

Forthly sometimes when I enter a search term into the addressbar it just loads for ever, but if I enter it in the actual search bar it's fine.

At this moment Firefox is unusable for me so I can only rate 2 stars, fix these problems and I will rate it up.

I've been on the 12.0 beta channel, so when 12.0 came out, I got automatically bumped up to 13.0, and I'm really impressed with the *speed* improvements.

With FF 12.0, in Facebook, I was regularly getting these warnings that the page had become non-responsive because of a FB script taking too long. But that's all but disappeared with 13.0. Overall web pages just seem to load much faster. And I noticed this speed increase *before* I realized I'd been bumped up to 13.0, so I don't think this was a just a perceptual "placebo" effect. In fact, I was noticing and really enjoying the improved overall performance, and was wondering what had changed, and then I did an About Firefox to "check for updates" (as I often do when using a beta) and to my surprise, realized I was at now 13.0.

If this faster page loading is what having the new SPDY control always on, as apparently is in 13.0, then this change is huge for this user, because the page loading, overall, is so much faster. Even though I have 64 Firefox Add-ons installed, the speed of 13.0 now matches or is often better than either Safari or Chrome (on my machine) when those two memory hogs are loaded with Extensions. I'm really pleased. They may be still working out bugs with SPDY (and frankly, I don't know much about how it works, technically) but if it works as well as it apparently does in 13.0, I hope they switch it on all the time for 12.0 users. It seems to be a huge boost.

A final point. I've been rising the Firefox beta channel for over a year now (love that bleeding edge!), and Google Chrome's beta channel, too, and I have to say that Firefox has nothing on the rate of new versions with Chrome. Chrome seems to change darn near every night, and the release version changes are way, way more numerous too. Plus, they have this crazy system version numbering system, like version 18.0.1025.168 and a big change can be like to 18.0.2045.283 or some such! And at the same time, you can have Google Chrome 20.0.1115.1 Dev / 19.0.1084.36 Beta / 18.0.1025.165, for example......Firefox seems utterly conservative compared to how Google goes at version changes.

Anyway, 13.0 rocks, in terms of speed, and I think only one of two of my 64 Add-ons were incompatible...not bad! And I haven't had a single crash since release. I've never been happy with Firefox than I am right now, and I'm constantly testing the competitors.

High CPU usage on my C2D MacBook 2007 :(
It spikes to > 30% on every page load. All addons have been disabled though.

Firefox 12 is in release on the FTP site, here -

ftp://ftp.mozilla.org/pub/mozilla.org/firefox/releases/12.0/mac/

Firefox 10.0.4ESR is also released, here

ftp://ftp.mozilla.org/pub/mozilla.org/firefox/releases/10.0.4esr/mac/

Firefox 3.6.28 is the final PPC release, btw. 3.6.29 is still in engineering but unchanged since 3-29. RIP

But there is TenFourFox in 10.0.4 for the PPC.

For years I've used Firefox in parallel with Safari. However, since v9 it has obstinately refused to import bookmarks on its first startup after installing, even though it tells me it has done so successfully, and the menu item for importing has vanished. I've switched to Chromium as my second browser.

FF is my default browser; I've been on the v9.0.1 release channel for some time.
I've generally been very pleased with FF9.01, however, one fairly serious issue that I've been experiencing is the matter of ad-ons.
I've got 8 add-ons installed as well as several personas. They've all been working well, for the most part, but every so often a few will become automatically disabled as being incompatible.
Currently, all of them are disabled as incompatible. This glitch apparently happens when Mozilla issues minor updates for 9.0.1.
I've notified Mozilla about this but so far no joy.
I'd like to stick with a stable v9.0.1 instead of going w/the release channel.
Does anyone have a link to a stable v9.0.1 download?

I foolishly went back to using FireFox. Yesterday it forcibly upgraded to v9.0.1, and now NetFlix no longer works - I get a black screen when I attempt to play anything. Anybody else having this issue? My silverlight plugin is up-to-date and enabled, and I can assess Netflix fine through Chrome. This is seriously twisting my arm into deleting Firefox permanently from all my computers.

After installation Firefox 9 tells me it has imported my Safari bookmarks, but it hasn't. And the "Import" menu item which used to allow one to do it manually is no longer there.

I've been having problems with Firefox ever since the "rapid release" versions started.

1) Firefox gets slower and slower with each open tab (even if they all only contain static content) and inevitably crashes under the strain.

2)Sophos Anti-Virus keeps reporting that there are corrupt files in the Profiles. As an example:

com.sophos.intercheck: Corrupt file: /Users/XXXXXX/Library/Caches/Firefox/Profiles/srjawp7b.default/Cache/8/2C/9DD14d01

Problems 1 and 2 appear to be connected, as the Sophos errors seem to be logged around the times I get the SBOD from Firefox. At one point the Activity Monirot showed Firefox eating 102% of CPU time. I've had as many as three of these show up in a row in the logs. It's possible there is a virus involved, but I don't know what. Clearing caches has no impact.

This morning version 7.0 upgraded itself to 7.0.1, and promptly popped up a window telling me the Profiles could not be read. Johnny-come-lately finally figured out there was a problem!

3) Plugins not working or not showing up at all, most notably QuickTime, Adobe Acrobat Reader, and DivX Web Player:

- QuickTime no longer handles imbedded MP3 files properly; they either don't load or don't play. A forced reload of the frame by itself will allow the media to play occasionally but it isn't consistent - repeated tests on the same page resulted in sporadic success - while loading it within the original frame will result in either nothing or a message that the QT plugin is missing (even though it shows up in the Tools > Add-ons list).

- Adobe Acrobat Reader is another story; as I examine the list of plugins and compare it to the directory, I can clearly see that the reader plugin is in the directory, but it does not show up in the about:plugins list or the Tools > Add-ons list. Every time I encounter a page with an in-line viewable pdf I get the Missing Plugin image, but I have gone through the proposed upgrading and installation each time without improvement. This may be a problem with Adobe Acrobat.

- DivX Web Player has been incompatible since upgrading to version 4 or 5, but it still shows up in the about:plugin list of enabled plugins. Not sure why or how to get rid of it.


None of these problems existed in version 3.6. I am left with only one conclusion: this rapid development route Firefox is on is less than ideal. I'm left with two choices: downgrade to v3.6 again or move to a competitor's product. I'm open to suggestions.