Firefox Community Forum

Firefox runs some sites slows on one of my Windows 10 computers.

I'm running Firefox on 4 Windows PCs and 3 of the 4 work just fine using the same synced profile.

Fidelity.com and Amazon.com are 2 of the sites that are very slow to load. They will eventually load, but clicking on any links causes another slow load.

The same web sites are fast when I use MS Edge.

Troubleshooting steps I've taken (none of which have worked):

• Refreshed Firefox
• Created a new profile
• Uninstalled Firefox leaving my old profile
• Completely uninstalled Firefox and deleted my profile

Any thoughts on troubleshooting steps to take?

when I try to access any website I get the same error message

Secure Connection Failed

An error occurred during a connection to support.mozilla.org. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

I would like to understand how DNS over HTTPS impacts browsing speed and privacy in Firefox.

Details: Hello everyone,

I am currently exploring Firefox privacy and network settings, especially DNS over HTTPS (DoH). I noticed that enabling this feature slightly changes website loading behavior on some networks.

I would like to ask:

Does DNS over HTTPS introduce additional latency? Are there performance differences between providers? Can corporate or public Wi-Fi networks interfere with DoH requests? Is there a recommended configuration for balancing privacy and performance?

I’m interested in both technical explanations and real-world experiences from Firefox users.

Thank you.

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Здравствуйте! В настройках установлено "запоминать историю", чтобы появлялись подсказки в заполнении форм. Однако эта функция не работает, а она мне очень нужна, так как я часто заполняю формы одними и теми же данными и значениями. В чем может быть проблема?

video downloadhelper is not saving the videos to vdhelper folder any longer. how do I change the folder location for only the video downloadhelper. its going straight to download folder.

thank you for your assistance.

I know I'm probably not in the right platform to be requesting a feature, but I hope you can add support for this website because I can't do video calls on facebook through firefox and I have to use a different browser to do so. Please add this feature as soon as possible. Thanks!

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Hi whenever I use my Google account to sign into websites (Google, ebay, YouTube, & anyother sites,) Firefox will become unresponsive, the window containing the tab i was using becomes unresponsive, sort of. - I can't click any open Firefox Tabs, - the red 'Close' radio button is greyed-out, so I can't close any tabs or the window - right-click is unresponsive, so i can't close tabs that way, but Command-W closes the tabs normally, but the others are still unresponsive.

- i can open a new Firefox window (with &/or without Tabs,) which works normally.

- & unrelated, but earlier, Firefox was running really slowly, Youtube videos were slowed down, but audio was normal, and scrolling was slow.

Hi there,

I'm wondering if I am experiencing intended behavior or if I've stumbled upon a bug. I am sometimes downloading files in a staggered manner (i.e., waiting for files to finish downloading before I start the next file downloads). However, any file after the first in that session shows an inaccurate progress indicator in the toolbar which includes progress of the already completed downloads.

For example, if I download two files completely, then start the download of two new files and both sit at 0%, the progress bar for the downloads actually shows 50% completed (2 files at 100%, 2 files at 0% -> Average of 4 files at 50%). I can't imagine this is intended behavior, for I imagine users would like to know how their current downloads are progressing only. This behavior is only fixed when I clear previous downloads, which resets the list to only active downloads, or when I restart the browser and start a new session.

Is there a setting where I can make the indicator report only active downloads?

Any insight is welcomed, thank you.

I am getting the message "updates are disabled by the admin." I am the only one here so I don't know how that happened. I need to install Slack but need to update first. I followed the steps to edit registry but still can't update. Please advise.

Bruce Caress

May 7, 2026, 15:17 CST

Hello, I've been watching MSNOW at 4pm eastern and after about half an hour it crashes. I get a message to send a report and restore the tab. I restore the tab which works for maybe ten minutes and crashes again. I am using Windows 11 on a new computer. I'd appreciate some assistance. Thanks. Bruce Caress

Moderator note: This question has been edited to precise Firefox and OS version, based on the crash reports.

Recently (about a month) I have found I often have to login to my Firefox account in order to access saved passwords etc. Sometimes from one day to the next. It never used to do this. Can't find any setting like "trust this device" or similar to stay logged in.

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