addons can be buggy, so try running without addons and see if it improves. If it does, then it is one of the addons. Sometimes it is a combination of addons that mess things up.

I am informed that both Slackware and Debian use ESR (the Iceweasel rebranding sort of disguises that). What looked like a pattern of bad behavior on the part of the Slack browser turns out to be -- well, looking for a cause now! I had to go into Debian to post this.... That's typical. And the misbehavior is relatively new: I can't recall nearly this many sticky wickets a few weeks ago (my Debian install is newer than the Slack install). Ouch!

And whats funny is my firefox is behaving now, must not have liked me posting about it

I stopped using ESR and switched to Nightly a long time ago. Nightly has it's own folder now in /opt and works well.

i stopped using ESR for my slackware 14.0 and installed firefox 30 binary package from mozilla.org, works very well (and chrome is just a joke, there current does'nt work on slackware 14.0)

Chromium works. IIRC I got it from slackbuilds or AlienBob's repo

no problems with ESR
what do I wrong?

I guess that most of the issues people are encountering with Firefox on Linux are related to the hardware acceleration which tends to be "glitchy" with some hardware (GPU in most cases).

On my laptop, I recompile Firefox to follow the standard release branch while the distro itself remain in the stable branch.

My poor CPU is having a hard time with this kind of compilation.

Recently I've noticed one weird problem with Firefox esr releases. My work pc is on about 10 hours a day, whole time Firefox is running. I am only using Addblock plus add-on, otherwise browser ir clean. So, when I start it in the morning, it runs quite well, everything is snappy and nice on my oldish Core 2 Duo T61 thinkpad.

However, after about 3 or 4 hours of such light use (only handful of tabs open), Firefox start eating resources. At first cpu usage jumps to about 30% and Ram to about 1gb. Browsing feels ok, but it's definitely slower than in the morning. In next hour or so, cpu usage jumps to about 50-60% and Memory usage to 1.5-2gb (I have 4gb total). Now Firefox is barely usable, it's lagging like hell, youtube videos are choppy, it takes few seconds to react to any click and so on.

I have to close it, wait a few mins and start it again, then it's all fine again for a 3 or 4 hours. I've had this issue with all esr's I've tested so far. I have not tested new releases, but I've started to use chromium, it's rather ugly and messy, but I've managed to configure it to be somewhat usable and been using it for a month now.

My impression is that firefox esr is very user friendly (user customizable there for comfy), but works like ****. Chromium is **** regarding user interface, but it is way faster and works really well. No annoying performance issues, flash is fast, java is fast and I can leave it with many tabs for a day with no resource waist...

But oh wait, I remember saying something like that when Firefox 1.* came out, I guess it's a balance between features and performance, but it seems Firefox 30 lost in both fronts, user interface is **** and performance is **** too (according to what I see on my work mate's windows pc).

Try using Adblock Edge instead of Adblock Plus, see if it solves the lagging issues.

This happens to me as well. Often there will be a process running called plugin-container which, if killed, can get things moving again. Other times you just gotta restart.


Brian

I tried the ff24esr that came with Slackware 14.1/64bit, and it wasn't horrible. It was better than ff14 (under Slackware), ff17 (under Ubuntu) and ff18 (under Slackware), but after a day or two its VSZ and RSS would start to grow, and not level off before crashing after about a week of normal use (or light use).

After the third week I replaced it with ff16.0.2 (from -current a few months ago), which is my standard browser on all of my systems. It is the most stable version I have found so far, staying up for between 40 and 70 days before starting to misbehave (at which point I restart it). Its VSZ and RSS do grow slightly over this time, but not badly.

The ff16.0.2 instance running on this laptop right now has been up for fifteen days, has eleven windows open, with a total of 153 open tabs, a VSZ of 3.5GB, and an RSS of 2.5GB. I totally recommend it.

http://ciar.org/ttk/public/mozilla-f...2-x86_64-1.txz

I have been using ESR for years without seeing this on my machines. I sometimes see it on machines I am working on, however, and they are essentially never running ESR - usually it's current version. It will be caused by some sort of errant configuration, and yes usually a plugin of some sort.

I DO restart FF (but not Slack!) fairly often, and it does appear to still to this day, in all versions, have a bit of a memory leak problem if left open too long without restarting. That can cause very sluggish response, but it's cured in seconds by restarting firefox. There are several extensions to give you quick access to the restart function, either on the menu or on a bar.

If restarting it does not fix the problem, make sure FF is NOT configured to use a proxy server (unless you run a proxy, in which case make sure it's set correctly.) If you find some crazy proxy settings that will be the problem (though the next question is how it got there - security audit time!)

If that is a dead end try firefox in safe mode. If that fixes the problem, then the problem is definitely an add-on. If you only two add-ons are noscript and adblock plus then I would remove ABP first, if that doesnt solve it then remove noscript as well. If either of those steps work, then I would say misconfigured or corrupted add-on, should be fine to reinstall it fresh.

If safe mode fixes it but disabling/removing all visible plugins does NOT, or if safe mode does NOT fix it to begin with, then we have to go deeper. You can try scanning through about:config manually, if you dont spot the problem just do a firefox reset. This will almost always solve the problem.

If it does not, the last resort is to remove the package, manually delete all configuration data (keep a copy of your bookmarks etc. somewhere else of course) reboot and then reinstall firefox.

I just switched to Seamonkey. It seems fast and good. There are fewer add-ons available, but there are still plenty and the ones I really need like NoScript and Adblock. I think I'll stick with it, because I'm sick of having to fix the Firefox UI after the devs push UI changes with every release. The seamonkey UI has been stable for a long time. Australis was the last straw for me.

I don't know if ESR is slower than the latest firefox, but it is slower than seamonkey (the one that comes with slackware).