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How to force Firefox to trust my mitm https proxy certificate?

Hi! I want to dump/debug http traffic with mitm proxy: https://github.com/ganskef/LittleProxy-mitm . This proxy generates it's own root certificate which i manually impor… (மேலும் படிக்க)

Hi!

I want to dump/debug http traffic with mitm proxy: https://github.com/ganskef/LittleProxy-mitm . This proxy generates it's own root certificate which i manually imported to Firefox from about:preferences#privacy > View Certificates > Authorities > Import. I verified that cert shows up after importing it. But I get errors despite of that:

Secure Connection Failed

An error occurred during a connection to www.youtube.com. Peer’s certificate has an invalid signature.

Error code: SEC_ERROR_BAD_SIGNATURE

Is there a way to bypass it?

Asked by wybqogzigoxruxdhnp 1 வருடத்திற்கு முன்பு

Answered by wybqogzigoxruxdhnp 1 வருடத்திற்கு முன்பு

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Open all synced tabs

Hello everyone, I have always been a fan of the sync feature. i have 3 devices i use everyday with my tabs open between all of them. now, just recently i switched to linu… (மேலும் படிக்க)

Hello everyone, I have always been a fan of the sync feature. i have 3 devices i use everyday with my tabs open between all of them. now, just recently i switched to linux and ported over my 500+ open tabs using the sync feature by just clicking "Open all taps" button. while playing around i missed up the os and had to reinstall it. now i am here in firefox looking at my synced tabs little window and there is no "open all tabs" button anymore. where did it get moved to? i looked everywhere and i couldn't find it. i cant just spend two or so hours opening all my tabs manually...

Thank you for your time.

Asked by waelother12 1 வருடத்திற்கு முன்பு

Answered by waelother12 1 வருடத்திற்கு முன்பு

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Google search bar from center of firefox screen now defaults to URL screen -its VERY sloppy and distracting

I have used mozilla firefox for over 5 years. It have always had a GOOGLE search bar in the center of the screen and it has worked correctly - now whenever i try to input… (மேலும் படிக்க)

I have used mozilla firefox for over 5 years. It have always had a GOOGLE search bar in the center of the screen and it has worked correctly - now whenever i try to input words into the GOOGLE search bar located in the center of the screen it defaults and jumps to the URL/Web Address Bar at the near top off the screen - this jump to the address bar is VERY distracting and inconvenient! How can I revert to using ONLY the search bar in the center of the screen? I have worked on this for two solid days and none of the recommended fixes have worked. I have uninstalled and reinstalled Google and Firefox numerous times but now it always defaults any Google search to the address bar! THIS MUST STOP!!! Thanks!!! Sincerely!!!

Asked by ekbass 1 வருடத்திற்கு முன்பு

Answered by TyDraniu 1 வருடத்திற்கு முன்பு

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Firefox 91 http redirect not working

As per the subject. Website www.bom.gov.au

Regards Ron Bugeja

Asked by ron.bugeja 1 வருடத்திற்கு முன்பு

Answered by ron.bugeja 1 வருடத்திற்கு முன்பு

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Inbuilt PDF viewer not working

I have Firefox 91.6.0esr (64-bit) on Windows. Previously I could access PDFs on a number of websites using the inbuilt PDF viewer. However now Firefox returns a save-as p… (மேலும் படிக்க)

I have Firefox 91.6.0esr (64-bit) on Windows. Previously I could access PDFs on a number of websites using the inbuilt PDF viewer. However now Firefox returns a save-as prompt.

I have checked the headers of some of these pdf pages and the header content-disposition: inline; filename=<abcdefg> is contained which I think should cause the PDF to be rendered in the browser but this is not happening. The pdfs on the same pages can be viewed using Edge.

Has the behavior of Firefox recently been changed?

Asked by denim.yaasir 9 மாதங்களுக்கு முன்பு

Answered by jscher2000 - Support Volunteer 9 மாதங்களுக்கு முன்பு

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Firefox 91.0 and Mailto Link message on Outlook on the Web

With the upgrade to v.91.0 the following message appears on the web page for Outlook on the Web: Add "outlook.live.com" as an application for mailto links What are mailt… (மேலும் படிக்க)

With the upgrade to v.91.0 the following message appears on the web page for Outlook on the Web:

Add "outlook.live.com" as an application for mailto links

What are mailto links? Why would I want them? How can I disable seeing this message?

 Rita

Asked by Gotadimple 1 வருடத்திற்கு முன்பு

Answered by jscher2000 - Support Volunteer 1 வருடத்திற்கு முன்பு

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Firefox does not recognize many content types

Recently the majority of content types have disappeared from the Applications section in the Settings. (See the attached screenshot) Even Word and other MS Office files a… (மேலும் படிக்க)

Recently the majority of content types have disappeared from the Applications section in the Settings. (See the attached screenshot) Even Word and other MS Office files are not on the list any more. Consequently, when I open a Word file, Firefox asks me where to save it and does not offer to either save it or open it.

I tried editing handlers.json file and added an entry for PDF files. Now upon clicking on a link that leads to a PDF file, Firefox prompts me to open it or save it. However, if I choose to open it, the file gets saved in the Downloads folder, rather than Temp folder like previously. The result is that the Downloads folder gets filled with files that I have opened but did not want to save and keep.

I created a new Firefox profile to see whether the previous list of content types would return. This did not work, and the new profile, too, shows only a few content types.

What could be the problem? Thanks.

Asked by allcort 8 மாதங்களுக்கு முன்பு

Answered by Terry 8 மாதங்களுக்கு முன்பு

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Firefox preventing PC going into sleep mode

From about the time I installed Dropbox 2-3 weeks ago my Windows 10 PC won't go into sleep mode unless I close Firefox first. Closing Dropbox makes no difference so it … (மேலும் படிக்க)

From about the time I installed Dropbox 2-3 weeks ago my Windows 10 PC won't go into sleep mode unless I close Firefox first. Closing Dropbox makes no difference so it might just be co-incidence. If I use Norton to run a scan and go into sleep mode at end that also works, and PC stays asleep until I wake it. Have tried refreshing Firefox but no improvement (running Firefox 91.0.2 (64bit)). Any thoughts please?

Asked by mike 1 வருடத்திற்கு முன்பு

Answered by mike 1 வருடத்திற்கு முன்பு

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Firefox line spacing, and window title vertical size.

Please provide an option to revert to the smaller line spacing and the original smaller top window title vertical size. For those of us using smaller displays the new si… (மேலும் படிக்க)

Please provide an option to revert to the smaller line spacing and the original smaller top window title vertical size. For those of us using smaller displays the new sizes in Firefox make it much less friendly, and inconsistent with other software on the same PC. Thanks!

Asked by firefox1110 1 வருடத்திற்கு முன்பு

Answered by Toad-Hall 1 வருடத்திற்கு முன்பு

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Firefox gives "Firefox is already running but not responding error" when opening links from other applications

Hi, I frequently have a problem where I will receive this error message every time I try to open a link from another application or the Windows desktop: "Firefox is alrea… (மேலும் படிக்க)

Hi,

I frequently have a problem where I will receive this error message every time I try to open a link from another application or the Windows desktop: "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window."

The existing Firefox window is running perfectly fine with no problems, and I am forced to copy and paste links to open them.

The problem goes away temporarily if I restart Firefox but usually starts happening again not long after.

I did search for help with this problem but the only results I found were in relation to the Firefox process actually being stalled and preventing the application being re-opened, this is NOT what is occurring for me.

Asked by David Pardy 1 வருடத்திற்கு முன்பு

Answered by FredMcD 1 வருடத்திற்கு முன்பு

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Firefox window does not open properly.

I've just upgraded to Firefox 91.0.2 (64 bit) on a Windows 10 system. Clicking on the Firefox icon on my toolbar indicates that the program is active, but no window appea… (மேலும் படிக்க)

I've just upgraded to Firefox 91.0.2 (64 bit) on a Windows 10 system. Clicking on the Firefox icon on my toolbar indicates that the program is active, but no window appears. Trying to close the program by right-clicking doesn't do anything and I have to use the Task Manager to get rid of it. The attached screenshot shows what happens when I hover the cursor over the taskbar icon.

Clicking on a URL sent me in an email also does the same.

Oddly, right-clicking and selecting 'open new window' works, so I can still sort of function, but it's a real pain.

I have only one monitor, so it's not a dual-monitor issue.

Asked by ptoye 1 வருடத்திற்கு முன்பு

Answered by ptoye 1 வருடத்திற்கு முன்பு

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Cannot unmark "Delete cookies and site data when Firefox is closed"

Dear all, I cannot unmark the setting "Delete cookies and site data when Firefox is closed". It is annyoing to enter each time all accounts if I want to go to facebook fo… (மேலும் படிக்க)

Dear all,

I cannot unmark the setting "Delete cookies and site data when Firefox is closed". It is annyoing to enter each time all accounts if I want to go to facebook for example, after firefox is restarted.

Firefox will remember history is set. I don´t think i am using privacy mode.

kind regards,

Asked by hornyx84 1 வருடத்திற்கு முன்பு

Answered by FredMcD 1 வருடத்திற்கு முன்பு

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Always show tabs, always show close tab (x)

Hi there, I am coming back to Firefox after about 10 years. I would really like to customise how TABS work because I find the default behaviour disorientating. Can you he… (மேலும் படிக்க)

Hi there, I am coming back to Firefox after about 10 years. I would really like to customise how TABS work because I find the default behaviour disorientating.

Can you help me with the following? 1) I would like the tab bar to ALWAYS be shown, even if there is only one tab. 2) I would like the (x) to close tabs to always be shown, not just when you hover over them with the mouse. I find this confusing because I don't know where the close button is until i mouse over the tab; since the size of the tabs is always different & the border between tabs is hard to see. or if there was some way to keep tabs to a standard width that would be welcome too.

Are these things possible?

Asked by riquez 1 வருடத்திற்கு முன்பு

Answered by riquez 1 வருடத்திற்கு முன்பு

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Cannot log in to American Airlines website AA.Com

For the past couple of weeks I am not able to log in to AA.com. When I fill in the require fields ( AAdvantage # or username, Last name, Password), it redirects to https:… (மேலும் படிக்க)

For the past couple of weeks I am not able to log in to AA.com. When I fill in the require fields ( AAdvantage # or username, Last name, Password), it redirects to https://www.aa.com/sorry.html. I have no problem logging in on one of the other major web browsers. Ad blocker is turned off, cache has been cleared, all the tricks that usually solve such problems. So, I'm beginning to think that something in a recent Firefox update doesn't play nice with AA.com. I'm using Firefox Ver 91.0.2.

Any suggestions?

Asked by Tom Huckstep 1 வருடத்திற்கு முன்பு

Answered by Tom Huckstep 1 வருடத்திற்கு முன்பு

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time format

How can I change the time in my browser history to 12 hour instead of 24 hour format?

Asked by DLHenry 1 வருடத்திற்கு முன்பு

Answered by DLHenry 1 வருடத்திற்கு முன்பு

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Turn off permanent private browsing mode

I did not knowingly turn on permanent private browsing mode, but it is on and I can not find any way to turn it off. How do I turn it off? Running FF 91.0.1 on Win 10. … (மேலும் படிக்க)

I did not knowingly turn on permanent private browsing mode, but it is on and I can not find any way to turn it off. How do I turn it off? Running FF 91.0.1 on Win 10.

Asked by bsmith3544 1 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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userChrome.css is not working with toolkit option enabled

I been reading various guide about how to use CSS to override the hyperlink color. But it is not working, Firefox are not grabbing the userChrome.css from the folder. I a… (மேலும் படிக்க)

I been reading various guide about how to use CSS to override the hyperlink color. But it is not working, Firefox are not grabbing the userChrome.css from the folder. I am not sure if there is other step that I have to do since I did everything to enable it through multiple guides.


  • toolkit.legacyUserProfileCustomizations.stylesheets is enabled
  • chrome folder is created and located in my profile root folder
  • userChrome.css and userContent.css is in chrome folder
  • restarted Firefox multiple times even checking the task manager to ensure that Firefox is absolutely shut down.

Based on those above, it should be working. I thought it was the CSS code, however Stylus have no issue with the code. Yes, there are two empty rules in there because I got the impression that CSS strongly relies on inheritance. So I set this way to ensure that that nothing will be overridden by the website CSS. I created a clean fresh profile and set the same thing above and restarted Firefox. Unfortunately, it didn't work. So the addons are ruled out. my default profile is ruled out since the clean fresh profile having the same issue.

I don't know what is the possible issue of this? I don't know if my CSS is defined correctly since Stylus does not have a issue with it and applying CSS on all websites. Anyone have a clue?

My CSS content:

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

a: link {} a: visited {

   color: #ffa500 !important;

} a: hover {} a: active {

   color: #ffa500 !important;

}

Asked by darkestdream 1 வருடத்திற்கு முன்பு

Answered by darkestdream 1 வருடத்திற்கு முன்பு

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Installing Firefox having ESR already installed

I've been using Firefox ESR for some years. Now I would like to know the best way to use and try the "normal" version of Firefox. Can I install it without uninstall ESR? … (மேலும் படிக்க)

I've been using Firefox ESR for some years. Now I would like to know the best way to use and try the "normal" version of Firefox. Can I install it without uninstall ESR? Or must I do a clean install of Firefox after getting rid of ESR? If this is the case, what must I do to keep my profile, bookmarks, etc?

Asked by nogueira46 9 மாதங்களுக்கு முன்பு

Answered by AliceWyman 9 மாதங்களுக்கு முன்பு

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Can't open links from other apps, error "Firefox is already running"

This question was asked 6 months ago and I have the same problem. Running Ubuntu Mate 21.04 (metacity), FF 91.0.2 (64-bit). I have it set up with two different profiles, … (மேலும் படிக்க)

This question was asked 6 months ago and I have the same problem.

Running Ubuntu Mate 21.04 (metacity), FF 91.0.2 (64-bit). I have it set up with two different profiles, with separate menu entries for each using "firefox -P [PROFILE NAME] -no-remote %u". One of them is set to always use private browsing mode and I use that profile as my default app in mate.

If if set chrome as my default browser, I can open links from other apps without a problem regardless of chrome being already running or not.

When I set FF as default, whenever it is already open and I try to open a link, I get a "Firefox is already running, but is not responding. To use Firefox, you must first close the existing Firefox process, restart your device, or use a different profile." error.

I've seen some comments about similar issues with wayland and tried setting MOZ_DBUS_REMOTE and even MOZ_ENABLE_WAYLAND to 1.

Can you help me?

Asked by vbm 1 வருடத்திற்கு முன்பு

Answered by FredMcD 1 வருடத்திற்கு முன்பு