Firefox not happy with El Capitan.

Firefox is crashing all the time. Others app too, I had Mac for 10 years this is the worst system "upgrade" (it's like downgrade). For the first time the new OS is not better then the last one. Some time I need to reboot the Mac, I feel like using Windows.

I had Macbook pro retina late 2013, OS 10.11.1

Other threads describe the same problem with El Capitan when using Safari too.

42.0 freezes using Yosemite on a MacBook Pro Retina. No problem with 41.

This is why i had to get rid of firefox, ticks me off to no unveiling end: https://support.mozilla.org/en-US/kb/firefox-no-longer-works-mac-os-x-10-5

It's a shame that they are trying to keep you safe.

Not sure i get what u mean Duane.

It was irony.

You said that it "...ticks me off..." and linked in article which stated

"To stay safe online, we recommend upgrading your computer or operating system. This article covers your options."

ooooooooh lol now i get it. that is cute definitely

Had the same issue.....did 2 things:

1. Uninstall the Firefox.

2. Resetting your Mac's PRAM and NVRAM

amacuser$ ... spot on, thank-you.

To add to the process as amacuser$ outlines, for 64 bit firefox a.k.a nightly

Close "nightly" (if locked force a shutdown)

get a clean boot (click close if you get a recover open application message)

uninstall "nightly"

shutdown

hold [control] - [option] - [P] - [R] and turn on your mac

wait for the "startup sound"

release the keys

wait for mac to startup

reinstall nightly

I am running Firefox 43.0.2 under El Capitan. It crashes more often than earlier version. I am sticking with Chrome for now.

Now well into February, and I'm running OS X v10.11.3 and Firefox 44.0.2 -- and FF still crashes several times a day. I can always restart FF, but it's still a PITA.

One of the suggestions on the Mozilla forum was to try installing a replacement for the Mac's new (in El Capitan) system fonts, since the FF crashes often reported font problems. That's not a bad idea anyway, so I'm going to try that and report back after a few days. If it works, I'll link here to the fonts I used.

Rob

Well, that hasn't helped. I like my new system font, but Firefox is still crashing. And I now have v45.0, so presumably it contains some bug fixes. Not enough tho! Most recent crash, just now, even knocked out the automatic crash reporter. And that happened after a full Reset of FF done yesterday, which removed all addons, though I immediately added back a few widely used and reliable tools.

For me, the crashes usually happen after using Google Maps in a tab, and particularly in satellite view. If I try street view, after just a few scans around, the images break up and leave large black gaps. Crashes can also happen while watching a video in a tab in FF. So I'm guessing it's a memory problem of some sort. Probably FF has the memory it needs, but it's not allowing the video or Google Maps processes to grab more as they need it.

Rob

PS

For anyone who happens to want a new system font, I got it at https://github.com/jenskutilek/FiraSystemFontReplacement The differences are subtle, but if your eyes are as old as mine, it's worth the small bother to do the install.

Rob Stevenson wrote:

For me, the crashes usually happen after using Google Maps in a tab, and particularly in satellite view. If I try street view, after just a few scans around, the images break up and leave large black gaps. Crashes can also happen while watching a video in a tab in FF. So I'm guessing it's a memory problem of some sort. Probably FF has the memory it needs, but it's not allowing the video or Google Maps processes to grab more as they need it.

This could well be an issue with the graphics card of your Mac. What model do you have?

I thought a bit of that info was being auto-included with my posts, but I see now it was not. What happened to that feature of the forums here?

Anyway. the crashes are happening in FF only, in my mid-2014 iMac...

Model Identifier: iMac14,4

Processor Name: Intel Core i5

Processor Speed: 1.4 GHz

Memory: 8 GB (2 x 4GB DDR3, 1600 MHz)

Chipset Model: Intel HD Graphics 5000

Type: GPU

Bus: Built-In

VRAM (Dynamic, Max): 1536 MB

Vendor: Intel (0x8086)

Device ID: 0x0a26

Revision ID: 0x0009