Firefox Support Forum

When working at night on my Mac laptop, I want to be able to enable a night mode like the light-on-dark mode on my iPhone. I do not want to change my mac display settings, as I am often going back and forth between web browser and photoshop, and I need my display settings to be stable. But I'd like my web browser to not flash painfully white at me.

Enabling 'dark' theme does not invert websites reliably and consistent as Dark Mode does on my iPhone.

I want a 'night mode' option.

How close can I get to that?

Mac OS 13.4.1 FF beta 115.0 (FF tells me there is a fresh update)

iOS 16.5.1 FF mobile 113.4

Hi ,

For 1 particular GET REST call , HTTP/2 is undefined , wheres as for other apis in the same site , HTTP/2 is set properly in request header

This undefined HTTP/2 , is associated with CORS error too .

Attaching the screenshot , please provide some help

My tabs along the top used to have an empty box to click on to do a new search. They suddenly disappeared. Have tried settings and answer forums to no avail. Seems like it should be a simple fix but it's not. What to do?

I've downloaded firefox for macbook air with OS Ventura 13.4.1. The Settings window does not pop up. Once chosen the current FF window gets deactivated, as in the activation jumps over to the Settings but the Settings are not available to choose. Any other window like Downloads, Add-on etc pops up. I've just changed the laptops and on the old one all works as it should, the Settings window pops up. What could have happened?

Is it possible to set a container as the default for new links that originate from outside Firefox? For example links I click on my email or messages apps, or share with my computer using airdrop? I would like to create a container called Default or General for example, and set that as the default for all links without an existing container, or where there isn't a container open.

This would mean that, unless I specifically open a new tab without a container, everything is contained. That will help to ensure that cookies and site tracking data is contained by default - making it easier to clear cookies (by deleting the container) and reducing the effect of any website links that I am sent - even well meaning friends might send friendly and useful websites with pernicious cookies and trackers (or versions of weblinks that are not covered by the existing containers, eg uk.linkedin.com v www.linkedin.com )

I see in the release notes just now that there's "Make “default container” entry keyboard navigable " - which has raised my hopes that this feature is possible - is it somewhere in the menus that I am not finding?

Related thread: https://support.mozilla.org/en-US/questions/950377. Posting it again since it is 10 years old and got archived To elaborate, Four whitespaces are getting prefixed to text I am selecting by double-clicking. I faced this issue only in a website called Kibana while copying a specific value for a key. I inspected the html code too but nothing seems wrong there. Let me know if more info is needed I was able to reproduce the issue in Trouble shooting mode also. I didn't face this issue in Brave/Chrome Thanks

Evertime I enter fullscreen on a video through firefox there are some black bars on the side of the video no matter what. If I want them gone I have to enter fullscreen on the browser and then fullscreen on the video. It doesn't do it when I use chrome or safari so why firefox? and how do I fix it?

When I try to access this website, (https://app.foodrescue.us/login) I get a blank white screen. Sometimes it is directly when I open the site, sometimes after I log in. I use this site daily and really need this fix. I am on a 2022 Mac Book Pro and have tried all of the following to no avail:

Contacted IT at website. They noted that many of the volunteers are able to use the website with Firefox. In fact it worked for me up until a couple months ago. They gave me suggestions to try but none of them worked. Cleared Cache Completely removed Firefox and re-loaded Turned off Cookies for site Disabled the one extension I have, still did not work Disabled Hardware Acceleration and re-started Restarted in trouble shooting mode, still did not work Basically tried everything mentioned in the Support logs The site works fine in Safari on my computer and on my iphone.

Every time I click on a link to an Offidoc document I get an error message:

"/var/runnxx/uploadxx/1660896/editdocument168897837099.ull does not exist"

I have no difficulty with opening the same file in Safari.

Any thoughts, anyone?

iMac (Retina 5K, 27-inch, Late 2015) Monterey 12.6.7 Browsing fonts on Google Fonts. All previews of fonts are in Sans Serif, rgardless of applying "serif' filter. If I quit out of Firefox and launch Safari the fonts display correctly (ie serif fonts appear as they should) whereas in Firefox they all appear as Sans Serif. Have searched various help topics but cannot find an answer.

I just installed Mac OS Ventura (13.4.1) and I can no longer download anything when I'm using Firefox. I've tried citation files, dmg files, and others, and all of the read "failed."

bold text Firefox won't load any pages. "Problem loading page." The lock is locked. Last night, always before, I had no problem. All other browsers load pages with no problem.

I just purchased a new MacBook Air (M2 chip) and am running Firefox 115.0.2. Firefox will not load any web page. I've cleared caches, etc. On my old MacBook Pro Firefox runs perfectly. I've mirrored the Network Settings, etc. Still no luck. Please advise. Thank you! JOHN

Also, iMac crashed and immediately restarted without a fault report while I was using Firefox today. Following instructions from the Apple Support Desk I have since Command "R" reloaded the Mac operating system (both normally and in Safe Mode) and the Firefox app as well but the issue persists. While it might be a minor issue (no auto-load) I am concerned there might be more serious underlying compatibility problems or system failures I have yet to experience. In contrast, my current macOS installation will add/delete Thunderbird (and couple of other apps I experimented with) on the auto start up list without any problem. The only recent macOS system change I think was to install an update to bring it up to Ventura 13.4.1 (c), from 13.4.1 I think.

The Apple Genius Desk at the Canberra store ran a complete hardware check which did not report any faults only a few days ago. In all other respects the iMac and apps "appear" to be running normally.

Any advice on rectifying the problem would be appreciated - e.g. a full Apple Store Reset/Reload of macOS followed by a fresh start with a complete reload of my current app collection as I am not all sure where the problem rests - with the macOS or the Firefox app, some incompatibility or a download corruption in either?

I have unchecked both "Use autoscrolling" & "Use smooth scrolling". I get normal scrolling on webpages that I load up, but for search engine results, DuckDuckGo / Google , I get weird slow/bouncy/delayed scroll motion. The scroll is very delayed, it is very weird, why would or this be occurring and how to fix?

Hello, Before, if I tried to download Zoom recording, I used to hit the shift + right click + save. And then I can download the mp4 version. Now, if I try it, the file extension is HTML. So, how can you solve that issue?

Hello,

I searched the web for answers but couldn't find any. I set firefox to be the default app to open .pdf-files on my macbook. And everytime I open a file, firefox opens a new window.

How can I make sure that a .pdf-file opens in the current window as a new tab?

On Safari this works as intended. On every other OS this works as intedend.

Thanks for time.

Like the title suggests, Firefox won't remember my Weibo.com login state. Every couple of days, I have to log in again. This does not happen with other social media sites, i.e. Twitter, YouTube, Instagram, etc. Only Weibo is having this problem, even though I allowed cookies from weibo.com.

What's more, Chrome does not have this issue with weibo.com.