browsed and some say try uncheck inject script thing, i will try this after restart so it is so annoying wasted my time much. it was ok when i was using other security software.

firefox hanging on loading state forever even basic websites.

checked firefox inspect in console tab there are full of error messeges like this

Firefox can’t establish a connection to the server at wss://ff.kis.v2.scr.kaspersky-labs.com/7D8B79A2-8974-4D7B-A76A-F4F29624C06BvHR8Fxb3_3LIlmkjCVcVPN2y_Pq_a5N_2WieRNkugg011jEou4CtVHgFo-Tl_lfYUYc5epnb2-7azfVzzJpzOQ/websocket?url=https%3A%2F%2Fcommunity.kaspersky.com%2Ftopic%2Fnew%3Ffid%3D12&nocache=1620874663618.

 

***

os- win
browser-firefox

Hello @batb 

Welcome!

Please share with us: 

1. KAV version & patch(x) x=letter, on the Windows taskbar or hidden icons, rightclick the Kaspersky icon, select About? 
2. W10 version & build, in Windows Search🔎 type    winver → press enter, a small popup window will show the required information? 
3. A full screen image of of “Firefox can’t establish a connection to the server at wss://ff.kis.v2.scr.kaspersky*” issue?
4. Is the issue happening in every website? 
5.  Is Kaspersky Protection extension installed? 

6. Is Firefox signed in to with a User account?

7. Has Firefox been reset to Default? 

Please post back? 

Thank you🙏

Flood🐳 +🐋

Resource:

• Read before you create a new topic!

all websites, i disabled kaspersky extention form Firefox

it is good from chrome or brave with kaspersky extention, only in FIrefox

Hello @batb 

Brave is not supported by Kaspersky. 

Please provide the following information: 

1. KAV version & patch(x) x=letter, on the Windows taskbar or hidden icons, rightclick the Kaspersky icon, select About? 
2. W10 version & build, in Windows Search🔎 type    winver → press enter, a small popup window will show the required information? 
3. Post a full screen image of of “Firefox can’t establish a connection to the server at wss://ff.kis.v2.scr.kaspersky*” issue?
4. Is Firefox signed in to with a User account?

5. Has Firefox been reset to Default? 

6. Provide the names of 5 websites, for us to test? 

Thank you🙏

Flood🐳 +🐋

https://reliantcapitalgrp.com/

https://financialpc.com/

https://bankershealthcaregroup.com/use-of-funds/medical-equipment-financing

Hello @batb, 

Thank you. 

We require the following information please: 

1. KAV version & patch(x) x=letter, on the Windows taskbar or hidden icons, rightclick the Kaspersky icon, select About? 
2. W10 version & build, in Windows Search🔎 type    winver → press enter, a small popup window will show the required information? 
3. Post a full screen image of of “Firefox can’t establish a connection to the server at wss://ff.kis.v2.scr.kaspersky*” issue?
4. Is Firefox signed in to with a User account?

5. Has Firefox been reset to Default? 

6. The three www you’ve provided cannot be tested, we do not have accounts & we’re unable to enrol/create accounts on financial/educational/government websites or any such sites. 

Thank you🙏

Flood🐳 +🐋

 

even this forum not loading completely screenshot attached above

Hello @batb, 

Thank you for the image!

The following information is important, please tell us: 

1. OS version & build ? 
2. KAV version & patch ? 
3. Is Firefox signed in to with a User account?

4. Has Firefox been reset to Default? 

Our replies above show how to find the information for:  1. & 2.

3. & 4. need no explanation. 

Thank you🙏

Flood🐳 +🐋

kaspersky security cloud 21.3.10.391(b)

i didn’t reset to default FF

FF signed with user account

Hello @batb, 

Thank you!

1. W10 OS version & build  → in Windows Search🔎 type    winver → press enter, a small popup window will show the required information? 
2. Is Kaspersky Security Cloud (KSC) Premium or Free? 
3. Close/exit Firefox browser.

4. Start the Run command

5. Type in Firefox -p

6. Select (Firefox) default

7. Select Start

8. Do not sign into the Firefox default browser with your Firefox account. 

9. In the default Firefox browser, does “Firefox can’t establish a connection to the server at wss://ff.kis.v2.scr.kaspersky-labs.com*” persist? 

 

Thank you🙏

Flood🐳 +🐋

is it because i disables kaspersky extention ?

Hello @batb, 

There’s a reason we’re keep asking questions, we’re trying to help you. 

Let’s try, again:

• 🅰❓ Is Kaspersky Security Cloud (KSC) Premium or Free? 
• 🅱❓W10 OS version & build  → in Windows Search🔎 type    winver → press enter, a small popup window will show the required information? 

• Close/exit Firefox browser.

• Start the Run command

• Type in Firefox -p

• Select (Firefox) default

• Select Start

• Do not sign into the Firefox default browser with your Firefox account. 

1. ❓ In the default Firefox browser, does “Firefox can’t establish a connection to the server at wss://ff.kis.v2.scr.kaspersky-labs.com*” persist? 

2. ❓ Did “Firefox can’t establish a connection to the server at wss://ff.kis.v2.scr.kaspersky-labs.com*” exist before you disabled the Kaspersky protection extension? 

4 questions & one procedure… 

Thank you🙏

Flood🐳 +🐋

Hello!

If Kaspersky protection extension is disabled in Firefox, then disable also script inject option in product. Then clear all cache in Firefox. Then restart Firefox and retest the issue.