1767886 - Turning VPN on/off breaks all browser connections

Status: RESOLVED INCOMPLETE

(Core :: Networking, defect, P2)

Description

[gxq058wrb]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0

Steps to reproduce:

ProtonVPN desktop app
Turning on/off or changing a server leads the browser to infinite loading that will never get succeeded.

Actual results:

Nothing helps to load any page: click, F5, duplicating tabs, Ctrl+C and opening in a new tab - nothing, but only closing the browser and opening anew. The problem didn't exist when I just started using ProtonVPN app, it appeared since I changed Firefox to the "beta" update channel (to v99 or maybe v98). This issue exists for about a month, about 3 versions including 2-digit v99

Expected results:

Just let the browser recognize that internet connection is changing. Somehow it stopped analyzing and just strictly tries to connect the previous inaccessible way

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Networking' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[gxq058wrb]

Oh, wait, I've just found out that it works fine in a new window. The problem can be seen only in the window with pinned tabs.
Maybe even deeper: Strict mode, HTTPS only, but one of the pinned tabs is errored as "PR_END_OF_FILE_ERROR" (proxyfied student library)

Comment 3

[gxq058wrb]

The errored tab was probably the reason. Attaching GIF vid of my Firefox

Comment 4

[apksbook]

Hey All,
Can we use the nocarrd vpn in Mozilla Firefox from below link? I want a confirmation about it.
https://apksbook.com/nocard-vpn/
Thanks

Comment 5

[kistent2014]

I've already get used to connecting my PandaVPN (https://pandavpnpro.com/) with FireFox and Chrome since extensions were not so stable as I expected.

Comment 6

[farhanffaa]

whenever i use vpn my website not working (https://onebusinessnews.com/) please let me know why its happening and sometimes its redirect to some other site.

Comment 7

[Hissley]

(In reply to kistent2014 from comment #5)

I've already get used to connecting my PandaVPN (https://aeroshield.me/) with FireFox and Chrome since extensions were not so stable as I expected.

Browser extensions are not VPNs despite they named VPN, it's rather proxying tools.

Comment 8

[[e-mail]]

(In reply to farhanffaa from comment #6)

whenever i use vpn my website not working (https://onebusinessnews.com/) please let me know why its happening and sometimes its redirect to some other site.

whenever i use vpn my following websites not working, even though it work with other ones
https://etch2o.com/ ,
https://etch2ombbr.com
https://onlinewatertreatment.com
https://wastewaterhub.com
please let me know why its happening and sometimes its redirect to some other site.

Comment 9

[Kershaw Chang [:kershaw]]

Hi Reporter,

We've recently added a new preference, network.http.http2.move_to_pending_list_after_network_change, aimed at improving how Firefox handles changes in network connections, such as when a VPN is activated. Could you please download the latest Firefox Nightly build, enable this preference, and test again to see if the issue persists?

Thanks.

Comment 10

[BugBot [:suhaib / :marco/ :calixte]]

Redirect a needinfo that is pending on an inactive user to the triage owner.
:kershaw, since the bug has recent activity, could you please find another way to get the information or close the bug as INCOMPLETE if it is not actionable?

For more information, please visit BugBot documentation.