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How to contact support? slowness problem

Greetings,

a few day after the last update ( 66.0.5),  my browser began to be really slow to upload web pages, to the point that even internet explorer is faster and more stable.

I've already search in their FAQ and done pretty much everything they suggest ( disable ipv 6, check firewall...) but nothing work. I've even tried the safe mode still nothing. I only don't have pluggin aside from adobe flash player ( up to date) and what mozilla put by himself ( Codec video OpenH264, and a decipher module for widevine content), beyon that i've got only Adblock plus, and avast online security. I'm on windows 10, and when mozilla slow down to the point where he can't even go on google or youtube in less than 2mn real time i usually close the program. When i re-open after half a minute, mozilla tells me that the program is still running, and that he need to close it first. The thing is: usually the program close immediately, and when i check in my task manager i don't see firefox running after closing it. Yet it still tell me that the previous session is still running. even if i wait like a minute. Since the FAQ doesn't help, and that it began a few days after their new version, is there a way to contact them? I'd never though i'd see the day when IE would be better than mozilla honestly. Regards, A'den

Greetings, a few day after the last update ( 66.0.5), my browser began to be really slow to upload web pages, to the point that even internet explorer is faster and more stable. I've already search in their FAQ and done pretty much everything they suggest ( disable ipv 6, check firewall...) but nothing work. I've even tried the safe mode still nothing. I only don't have pluggin aside from adobe flash player ( up to date) and what mozilla put by himself ( Codec video OpenH264, and a decipher module for widevine content), beyon that i've got only Adblock plus, and avast online security. I'm on windows 10, and when mozilla slow down to the point where he can't even go on google or youtube in less than 2mn real time i usually close the program. When i re-open after half a minute, mozilla tells me that the program is still running, and that he need to close it first. The thing is: usually the program close immediately, and when i check in my task manager i don't see firefox running after closing it. Yet it still tell me that the previous session is still running. even if i wait like a minute. Since the FAQ doesn't help, and that it began a few days after their new version, is there a way to contact them? I'd never though i'd see the day when IE would be better than mozilla honestly. Regards, A'den

Chosen solution

Windows Defender is good (make sure you keep Windows fully up to date) and just run a scan once a month with malwarebytes (www.malwarebytes.com). Avast is worse than nothing

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P.S: hotmail don't even work with firefox, i can't even log off for the hotmail menu doesn't even appear properly. Work on other browser. I didn't see a version of mozilla so broke down!

It is possible that your firewall or other security software blocks or restricts Firefox without informing you, possibly after detecting changes (update) to the Firefox application. Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access for Firefox and the plugin-container process and the updater process.

See:

Sorry for the late answer, i'm quite busy this days. As i said, i've already check all of this, and tried everything. Didn't work. Now i'm on 67.0 (64 bit). But the problem remain. I've already re-allowed firefox manually in my firewall, even make enxception with my antivirus. But still the problem remain. I noticed for the previous version that when my anti-virus is outdated, it worsen the problem ( no his database, the program in itself, he's supposed to ask me first before downloading.) But now he's on date, the version of firefox has changed, i followed those article to the letter already. And still, google map is sloooow as hell and many other web page too. And i'm on a network with 70Mb/s in download. Wich is quite good already, and only Mozilla is so slow. as i said, even explorer is faster as this point. And that browser is known to be coded like crap and to be quite forsaken by windows... The problem and bugg i've said in my previous comment still happen. even if it tend to stabilised after the first 10 mn after lauching firefox, it's still horribly slow.

If this continue i'll have to forsake mozilla for good, and use another browser, but i don't wand to use chrome, too willing to put its nose where it shouldn't.

Please update to Firefox 67 (Update Firefox to the latest release) and then refresh Firefox (Refresh Firefox - reset add-ons and settings). Does that help?

Unfortunately no. I want to point out the fact i said i already were on firefox 67. So no need to update anything. I've done the full reset procedure. And nope, firefox still slow to close in the process tab, to the point that when a close it to relaunch it it give me a message saying that he need to close the previous process and ask me to confirm ( cf first message...). And i needed a full minute to load the adblock website page. JUST the website page.

I noticed one thing however, don't know if it's related or not: first firefox don't stop telling me that i need to update shockwave flash, but when i click on the update button it give me the exact same version 32.0.r0 , wich seem to be the latest. And second: there's two plug-in, provided by firefox, i never seen before the 66.0.5: Codec Video Open H264 by Cisco System Inc. And: decipher module of Widevine content by Google inc. ( since i'm french i'm translating it from the french name so there may be some little difference in english. Shouldn't be too much different though.) As i said, i discovered those plug-in with the 66.0.5 version, wich is were my trouble begin if you read above. Also a nearly don't use google anymore. I use Qwant ( french navigator). So i don't know if that google plug-in is a necessity. Especially when we know their tendencies to snuff in all of your pockets... Another thing i didn't mention, i always use private mode. but since private were working perfectly fine before the 66.0.5 version, i didn't saw any reason to specify that point either.

When looking at the problem it's as if firefox can't access the website servor, or has trouble with the dns. Even though it don't gave me a specific message error. And again, the firefox.exe stay at least 1 mn running after i've closed the program. He slow to launch, after some mn it stabilised but it's still slow to load webpage and upon closing it, it is still slow. and it's the only browser i have trouble with, so unless you'll tell me there's virus that target Firefox SPECIFICALLY, i do think the problem is with firefox in itself. For before those bugg, i didn't change a thing on my computer, i didn't remove any program, or installed new ones. the only thing i notices is that avast needed an update from the yesterday of the maj of firefox to 66.0.5, wich has been made, and reduced the problem. Just reduced. And since i made firefox.exe an exception for avast. so it don't do anything to it.

Okay found another thing, i'm trying right now to access "leboncoin" website and i've got a little message at the bottom, "Etablissement d'une liaison TLS avec js.datadome.com" I've let the french original message so you could translate correctly by yourself. Firefox is looping on that step to connect fully on the website

Can you try fully uninstalling Avast? Note that you don't need it anyway, the built in Windows Defender is far better than Avast anyway.

wow, took him only 2 mn to past that step.

i dont really now about that, many informatician consider windows defender to be quite ineffecient. Not that they see avast with better opinion but...i trust more avast that windows defender, i'll try however.

Chosen Solution

Windows Defender is good (make sure you keep Windows fully up to date) and just run a scan once a month with malwarebytes (www.malwarebytes.com). Avast is worse than nothing

Well, seem that he was slowing down mozilla, strange, didn't had any trouble with Avast before, and i used it for years. Plus, why only firefox? i have two other browser ( the default explorer, and another one of my choosing as an emergency browser.) and both were working perfectly fine.

Avast does all sorts of terrible things to slow down programs, and the things it does actually place your computer at risk. That's why it's best to avoid it.

well i had to reinstall avast once or twice yes, but that solved any problem i had with it, and i've used for 6 years without major problem. Didn't had problem with trojan or the like. ( true that i don't really go on strange website either, that help a little.)