Firefox Support Forum

My browser updated to 96.0 (64-bit) about an hour ago. I've been running the Cheshire cat Theme for a long time now without it making the entire browser turn Dark (I just like what it did to the Tab bar and the Menu Bar). It didn't effect anything else -- not the Menus themselves and certainly not any webpages. But since the update--the Menus, the Firefox Home page, the Settings page, and even the Google search results pages--all have been showing up in Dark Mode. I switched around other themes I have and noticed that only the themes that are light in color stop everything from going dark.

It's a minor thing but I would really like to keep my set up as it was. I would really appreciate some help.

Hello My Firefox browser stopped working suddenly. I used it this morning (11/12/21) without issue but when I tried it around 6PM CST US I got PR_CONNECT_RESET_ERROR on everything I tried to load. There was no updates that I am aware of and I tried all of the solutions provided on sites I visited up to and including disabling anti-virus with no success. For now I've uninstalled the product until a solution has been found. Thank you to anyone who may be able to assist in this problem. All other browsers I've tried work as expected.

(System Windows 11, Anti-virus Kaspersky Total security)

Since three updates ago there are white bars on three sides of my Firefox window whenever I disable the title bar. (The bars should be visible if you open the first picture I've attached over a coloured background. The second picture shows the bars disappearing when the title bar is switched on.)

This problem persists in Safe Mode and even after a fresh installation of Firefox, so I am confident that my add-ons and themes are not the issue. The bars also show up when using the Firefox default theme, so a custom theme is not the problem either.

I have also tried, to no avail: Updating my graphics driver, changing my screen scaling, cleaning the registry. And of course simply restarting my computer.

I am at a loss as to what the issue is or how I can fix it.

Firefox 89.0.2, windows 10 pro with latest updates

I had trouble with two sites - they were displaying the mobile view instead of the desktop view. I looked at the 'general.useragent.override' string in about:config. It was set to "Windows". I changed it to Mozilla/5.0 (Windows NT x.y; rv:10.0) Gecko/20100101 Firefox/10.0 and then the sites displayed correctly.

But now, duckduckgo and google are displaying strangely (perhaps they are showing the mobile version of the website?? Beats me.)

There are 3 other useragent config variables in about:config  : dom.push.userAgentID 66cb7374724c47149c50bf2c98c7f97c general.useragent.compatMode.firefox false useragentswitcher.version 0.7.3

(Plus, there are 4 'devtools' variables.)

Are those correct? Am I missing some? What else should I look at in order to fix duckduckgo and google?

Thanks!

PS: duckduckgo and google display correctly in Chrome. But I do not want to use Chrome.

PPS: I uploaded screenshots showing what google looks like on Firefox and on Chrome.