Firefox Community Forum

Two days ago I closed FF and went to bed. I opened it the next morning and lost about 20 tabs. Ever since then, every time I restart FF, I lose all tabs except for one default tab.

TLDR: 1. "restore previous session" is not available. 2. Toggling Settings/Home and Startup does nothing. 3. Update? My FF automatically updates. 4. "about:sessionrestore" finds nothing,

1. FF help said I could go into History and click "Restore Previous Session" but that option doesn't exist. All I can do is look at History and see lists for today, yesterday, last 7 days etc.

2. Another advisory suggested Settings, Home and Startup, select "Open previous windows and tabs". but it was already selected. So I switched it off, restarted FF and then switched it back on. I still lose all tabs every time I restart FF.

3. Another advisory suggested, checking for updates. My FF automatically updates.

4. I tried "about:sessionrestore" It returns with the heading: "Sorry. We’re having trouble getting your pages back." Restore session is greyed out and "View previous tabs" produces an empty list. I've tried it a few times now, identical result.

Thanks for any help. Cheers, Andrew

Is there a list of active Firefox / Mozilla mailing lists? Specifically, I was hoping to get onto a list that highlighted each release and critical security issues. But it seems like there should be a web page that lists what communication channels Firefox uses (to include mailing lists) but I can't find one.

This error message appeared on login. "<title>Error</title>

Reference #30.b1c7dd17.1792253410.a1e2a97c

https://errors.edgesuite.net/30.b1c7dd17.1792253410.a1e2a97c

How should I deal with the problem?

/s/ Albert P, Zabin [redacted email from community support forum]

My browser is using 2,3 Gb of extra ram it goes away by restarting but comes back in 5-10 min. It occurs wathing twich, i have tried disabling extentsions but it doesn't work. in about:memory the readout is as thoug it is keaping an extra copy of open browser files in ram.

2,511.83 MB (100.0%) -- heap ├──2,301.00 MB (91.61%) -- committed │ ├──2,016.65 MB (80.29%) ── unused-pages/dirty │ ├────230.75 MB (09.19%) ── allocated │ ├─────32.96 MB (01.31%) ++ bin-unused │ └─────20.65 MB (00.82%) ++ (2 tiny) └────210.82 MB (08.39%) -- decommitted

    ├──210.21 MB (08.37%) ── unmapped
    └────0.61 MB (00.02%) ++ unused-pages

What causes Firefox to do a refresh. I stepped away from my PC for 15 minutes and found FIrefox doing a refresh when I returned. Lost all of settings. Putting the icons on tool bar where you want them is one of the frustrating things I have done in a long time and now, I get to make all my settings changes over again plus try to get the tool bar icons where I want them.

After the recent Firefox upgrade a couple of days ago, I am unable to get to my Questrade login page. I click login, I get a white page with a message in bottom left hand corner "transferring data from login.questrade.com..." and no further response. I am able to login with MS Edge, and Firefox is able to access all my other websites except this one.

I have run through all the things to try in the Firefox support article "Firefox can't load websites but other browsers can" to no effect.

• cleared cookies & cache
• cleared recent history
• turned off DNS over HTTPS
• Disable IPv6- changed to true
• changed Proxy settings to No Proxy

I've turned off Bitdefender firewall and antivirus apps to no effect and ran a full system scan with Bitdefender. I really don't want to have to use a different browser each time I want to access questrade site. I would really appreciate any advice as to what else I could try to resolve this issue. Thanks so much!

I asked this about four months ago, and did not get any answer, so I am asking again. Sorry for the repetition.

Here is the problem: when I highlight a short passage of text (~3-4 words), and right-click, the context menu always shows the translation entry as "Translate to Dutch". (See first image.) If I accept that, the input language is assumed to be English, so I actually have to change both drop-downs. (See second image.)

If the passage is long enough (> ~4-5 words), the context menu will show "Translate to English", which is what I want, and as an aside, Firefox is almost always correct in detecting the input language.

I can understand it being hard to detect the input language from a short phrase, but why does the output language default to Dutch? And is there a way to change this behavior?

Thanks.

There is no simple way to add mailto:"mail.proton.me in settings.

I can delete Google but there's no option add an alternative. Settings is looking for an app, not an email provider address. I had to modify handlers.json to make it work.

Currently I am trying to use the firefox built in VPN option. When I hit the turn on it turns on and goes green but I am unable to browse. I suspect this is due to the corporate firewall and content filters that are in place when I am in the office. The firewall team is looking for support as we are unable to find out what access is needed to be open for this service to work. What IP's does the service connect to for access? What ports are use for setting up that browser level VPN? Is their any application or urls that should be allowed? If documentation for what access is needed to be opened on a corporate firewall would be appreciated. We have searched extensively and cannot find the information other than this runs by Fastly. We cannot find ports/urls/ips that are needed.

Thanks Chris.

Hi, I’m having trouble playing Prime Video in Firefox on my 2023 MacBook Pro. The video freezes, or I get a “Video unavailable” message. It happens both on primevideo.com and when I open Prime Video from Amazon’s website.

Prime Video plays normally in Safari on the same Mac. In Firefox, I’ve tried restarting my Mac and router, turning off my VPN, testing in a Private Window and Troubleshoot Mode, and updating Firefox. “Play DRM-controlled content” is enabled, and Widevine Content Decryption Module is listed and enabled. I also found that media.eme.enabled was set to false and changed it to true, but the problem remains.

Could you help me determine why Prime Video won’t play in Firefox and what I should try next?

Firefox version: Version 158.0 (64-bit) macOS version: Sequoia 15.8.1

Thanks so much.

amazon.com works. but amazon prime videos hangs up -- the first page htat comes up always has an add and a watch now button. instead of getting the arrow to watch, i get a rotating pizza and it never loads the video

My Firefox auto updated to version 158.0 the other morning and since then, the Twitch video player fails to work. I'll try to watch a stream, but the video player will stay black with a constant "buffering" icon. There was no issue the night prior, before my browser updated.

I've tried watching Twitch on another browser and had no issues.

Here is a video which would demonstrate it best: https://youtu.be/MpHX4Ep-IMM

These two comparison are made between Firefox 158.0 (64 bit) in Troubleshoot Mode and Brave 1.97.59 (64 bit), on Windows 10, version 22H2. I use the 30MB Big Buck Bunny version on test-videos.co.uk site, Firefox seems able to load the 1MB, or 2MB version pretty smoothly, but higher than that, it starts to stutter, for some reasons I cannot understand.

(Most results I can find online tell me to "disable hardware acceleration", but I have been turning that setting on and off multiple times without seeing any changes)

Ironically, videos on Youtube can load normally without issues. It just seems any embedded videos would behave oddly like this, which I encounter most often on Discord.

Please, I would appreciate any insights. I can provide additional information if needed. Thanks in advance.

The top row in Firefox browser doesn't have any tabs, it looks as pictured in screenshot (Chrome below for comparison). I only see the icon and text for a page, but that isn't enough to know clickable area, and it makes it unintuitive.

I tried several browser themes but none of them changes this. There doesn't seem to be a setting for hardware acceleration anymore that used to solve it for some users in the past based on a search on topic.

Maybe this really is how it's meant to look but the design just went backwards from what we want to see; tabs are no longer tabs but something vague. Can never please everyone i suppose, but i want old back.

Hello, I used to have the VPN button but now I don't. I'm on Firefox v158.0 in the USA, on my personal laptop (so no enterprise policies to interfere). Here's what I've tried:

• Customize toolbar: no, the icon isn't in there either
• Start Firefox in Troubleshooting Mode
• Refresh Firefox
• Ensure "Allow Firefox to improve features, performance, and stability between updates" is on
• Sign out and back in to my Mozilla/Firefox account

I miss this feature already because it makes me feel better about using public wifi. What else can I try?

Thanks!