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I keep getting "update" messages from Firefox, but when I try to update I get a "corrupt image" message. I suspect I cannot update because I am using Mac OS X 10.3.9 and the update is for 10.4. (I'm currently using Firefox 2/0/0/20.) Is there an update I could use? Or is it time for a new Mac?

This happened

A few times a week

I am running Firefox 7.1 on Mac OS 10.7.1

After an update my old firebug stopped working. I downloaded the new alpha version 1.9.0a3 and it appears to be enabled, but the icon that is supposed to appear to launch it is not there. F12 - suggested for prior version does not work either.

How do I launch Firebug

After I downloaded Lion, I ran Firefox 5.0.1. Immediately, I noticed significant layout problems in CNN.com and MSNBC.com. And on Facebook, the friends, message, and notification icons at the upper left didn't work. Nor did entering comments to Facebook posts. Even the button that says "View X Comments" in friends' posts didn't work. For comparison, all of them work fine on Safari 5.1.

I rebooted Firefox 5.0.1 with plugins disabled, and still encountered the same problems.

I installed Lion 10.7 and manually installed Java now the plug-ins checker says I am not up to date. Does Firefox 8 not need this app? I posted this when Lion was released, now I have gone from Firefox 6 through 8 and still no Java 14.0.3 update. Does anyone know how to fix this or is this just an issue because Mac does it's own Java? I have got the latest Apple 1.6.0_29 Java release.

Since having installed Firefox 13 BETA, and still after deleting and installing Firefox 12, no javascript is run on websites. Within preferences all is active and set (and unchanged). I tried to update to aurora but this did not work as well...

I'm running Firefox 14.0.1 on Mountain Lion (yes, the final official version), with the 'Roomy Bookmarks Toolbar'.

When I enter full screen mode, my bookmarks bar completely disappears. Any way to fix this?

I have Mac Os 10.3.9. I can only use Firefox 2.0.20, but I can not find it anywhere to downlowd it! In french version if it is possible... Do you know where I can download it? Thanks in advance!

Operating system

Mac Os 10,3,9

I immediately noticed a significant performance regression after upgrading from 14.0.1 to 15. I've seen various comments on input.mozilla.org but it's now a week after release and the latest firefox planning meeting made no mention of it (https://wiki.mozilla.org/Firefox/Planning/2012-09-05) so I thought I would try here.

The first thing I noticed was slow and jerky scrolling of a web page (the same one I was looking at immediately before the upgrade). I tried restarting in safe mode, and while this improved things somewhat, it was still noticeably worse. I also tried with a clean profile with similar results. It was bad enough that I reinstalled 14.0.1 and everything went back to normal.

Now I'm back in 15 to submit this report and I've noticed that the performance is bad in other places too.

• scrolling in all web pages, even simple ones
• scrolling the tab bar is also slow and jerky
• selecting text is so slow that the highlight lags half a second behind the cursor
• key repeat is now half the speed of other applications
• youtube videos drop frames all over the place, and WindowServer is the top CPU user when playing

I'm going to revert to 14 again for the time being but if you want me to try anything in 15 I can do that. I'm a developer but don't have any experience with ff so don't know what to try next.

when trying to upgrade Firefox the download proceeds but it prints out: Download failed to mount the disk.

This happened

Not sure how often

== only when trying to upgrade Firefox

Icons that were displayed for each bookmarked site-in the list of bookmarks-have disappeared (only the site name, not associated icon-is shown) since I upgraded to Firefox 9.0.1.

I am running a Mac with OS X 10.7.2 (Lion). I was previously using Firefox 8 with no problems.

Here's the message: The operation can’t be completed because some items had to be skipped. For each item, choose File > Get Info, make sure “Locked” is deselected, and then check the Sharing & Permissions section. When you are sure the items are unlocked and not designated as Read Only or No Access, try again.

I'm using a new Imac and I guess that they're asking to check something (in finder?) but nothing works

I just upgraded to OS X Lion, and when I went to work, I noticed that Firefox 5.0.1 stopped connecting to the Internet.

It refused to connect me through the corporate proxy (MS ISA + NTLMv2 Auth). After repeated attempt, it would sporadically connect me to http sites but NEVER https sites.

If you need further information, please let me know.

-hq

I used Software Update on my OSX Lion Mac to upgrade to Java 1.6.0_31-b04-413. The update showed as successful and that is the version shown in the Java Preferences utility. I rebooted afterwards and have restarted Firefox many times, but Firefox 'about:plugins' still shows an outdated version (14.2.0) and and applet versions of 1.1.3, 1.2.2, 1.5, 1.3.1, 1.3, 1.1.2, 1.1, 1.2.1, 1.6, 1.4.2, 1.4, 1.1.1, 1.2, and an applet jpi version of 1.6.0_29. The check for updated plugins also shows that I am not using the current version and tells me to update to 1.6.0_31, which I have already done. I have tried rebuilding the Firefox plugins database and that didn't solve it. Any thoughts on how to get Firefox to see and use the upgraded Java on my Mac?

I have recently installed a security certificate on my site. I tried various ssl checkers and the certificate seems to be fine. Firefox, however, does not like it and displays a warning page that says:

www.academi.pl uses an invalid security certificate.

The certificate is not trusted because the issuer certificate is not trusted.

(Error code: sec_error_untrusted_issuer)

This happens on Windows, Mac and Linux machines in my office. I have also received a number of reports from site users who experience the same problem. It seems that the problem did not occur in firefox 7.x, but I have yet to verify it properly.

Does anyone knows a solution to that? I tried deleting certificates manually in Preferences, but it did not help.

I seem to be in the beta channel. Which I am finding that for my busy lifestyle, has too many incompatability issues with add ons and extensions. I don't have time to keep finding and waiting for new solutions and upgrades from your developers. I just upgraded to firefox 7 and lost some add ons that I'd rather still have.

1. can I just go back to firefox 6.3.4 or wherever I was

2. should I switch to some "slower" upgrade channel, and where would I find this?

I have a question regarding my web browser (I'm currently using Firefox 8.0.1) and I have an iMac.

On various websites like espn.com and ebay (just to name a few) I’m constantly getting pop up warning windows such as:

This Connection is Untrusted

or

(for example) securepics.ebaystatic.com:443 uses an invalid security certificate. The certificate is not trusted because the issuer certificate is not trusted.

What do I need to fix/change in Firefox to keep from getting these “pop up” warnings. They are very annoying!

Thank you for your help.

Doug Stodola

When I tried to download the latest Firefox version, a message said that my operating system doesn't support the upgrade. But the information on download page says MAC OS X 10.5 or better is okay. My system is MAC OS X 10.5.6