Questions tagged [about-config]

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Firefox: quick and simple way to close current window and open new window?

In the Firefox webbrowser: Is there a quick & simple way to close the current window and open a new window instead? (Sidenote: For the purpose of this question, there is only 1 currently open ...
summerrain's user avatar
0 votes
0 answers
27 views

Configuring content process sandbox level in Thunderbird

I am using Thunderbird 115.6.0 on Linux (Debian 12). In the menubar, clicking on "Help" > "Troubleshooting Information" shows Thunderbird's sandbox settings: Notice that the ...
Flux's user avatar
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How to allow WebAssembly in Firefox for specific websites only

In Mozilla Firefox's about:config, I have disabled WebAssembly by setting javascript.options.wasm to false. However, there are some trusted websites where I want to allow WebAssembly. How do I define ...
Flux's user avatar
  • 231
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0 answers
249 views

open firefox about pages without the address bar

I can't seem to open the firefox about pages without using the address bar. I've tried this in javascript with no success : window.open('about:profiles') Does anyone knows how can I do that ? It ...
Vincent's user avatar
  • 111
1 vote
0 answers
557 views

Firefox stays in browser full screen after minimizing the browser that had a full screen video open

Behavior on my Firefox: Go to youtube or any video website Click the full screen button on a video Minimize Firefox When maximizing Firefox, the previously full screen video is no longer full screen, ...
Ray C's user avatar
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1 answer
106 views

can I reprot my own fake name of OS I am using with Mozilla FireFox?

My bank with IB stops supporting Windows 8. I'm using it along with Mozilla FF. How can I send my own version of OS (say Windows 10) so that I can continue using Internet Banking ?
user865044's user avatar
1 vote
1 answer
103 views

What is the default value for "highlightAll" in Firefox's about:config?

I was trying to find a way to permanently enable "Highlight All" on the find bar, but accidentally toggled highlightall instead of findbar.highlightAll. I can't find any documentation on ...
TheRealFakeNews's user avatar
5 votes
2 answers
6k views

Firefox, how to have very small tab size and no tab-scroll buttons

Both Chrome and Firefox introduced the Search tabs list menu. In my view, this completely negates the need for the (very annoying imo) tab-scrolling feature of Firefox (i.e. when you have what they ...
YorSubs's user avatar
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2 votes
1 answer
974 views

Texts without sub-pixel rendering in Firefox and its variants (Librewolf, Tor, etc) look blurry in LCD monitors

This problem occurs for tabs font as well as font in Library manager: Can you test and confirm it? Is there any solution? Can I force enable sub-pixel rendering? Things I tried before: disabling ...
amymor's user avatar
  • 35
0 votes
1 answer
445 views

Firefox preference to set default permission for handling various protocols (e.g. "tel:" links)?

I have the tel: protocol's default handler set to Microsoft Your Phone, so I can place calls and send SMS from my computer. When I click a tel hyperlink in Firefox (e.g. tel:(555)555-5555), I get a FF ...
ETL's user avatar
  • 371
2 votes
2 answers
205 views

Disable Firefox sponsored results

To my horror, I just noticed today that Firefox injects sponsored results into any search: I want this gone now. Is it possible to disable?
Zombo's user avatar
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2 votes
1 answer
397 views

Firefox ESR on Linux Showing Windows 10 user agent and Will Not Change

For some bizarre reason, Firefox ESR 68.0 running on Debian Linux shows Windows 10 as its user agent when inspected in help>troubleshooting information. Mozilla/5.0 (Windows NT 10.0; rv:68.0) Gecko/...
Kebam's user avatar
  • 79
1 vote
1 answer
949 views

For Firefox Quantum (v70) where can I find the theme/persona background image?

Is there a way to get the background image for a Firefox theme downloaded from the Mozilla add-on website? Mainly I want the image for this theme: https://addons.mozilla.org/en-CA/firefox/addon/...
Ed Polo's user avatar
  • 21
1 vote
0 answers
99 views

Are firefox about:config entries saved somewhere besides prefs.js?

I played around with the about:config in firefox. I saved the prefs.js file beforehand in case something goes wrong. When I stop firefox now and replace the file with my earlier copy, the prefs in ...
Christoph Bruns's user avatar
2 votes
4 answers
3k views

Firefox show download URLs

With Firefox, I can select History Show All History and it has a "Location" column with the URLs. If I select Tools Downloads, it shows the size of each download, but it does not show URLs. It does ...
Zombo's user avatar
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4 votes
1 answer
1k views

Minimum tab width in Firefox Quantum

Firefox Quantum changed the minimum width of Tabs, previous versions of Firefox had it set to a greater value. (*minimum tab width - when you have a lot of open tabs they shrink to some predefined ...
radoh's user avatar
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2 votes
2 answers
2k views

How to determine which preference file lock a Firefox config option

On a Windows 7 computer, My Firefox network.proxy.type is locked so I cannot modify it When looking at C:\Program Files (x86)\Mozilla Firefox\default/prefs/localsettings.js there are only 2 lines: ...
Quicky's user avatar
  • 121
0 votes
1 answer
121 views

Firefox JSON View - Enable loose parsing?

In the latest versions of Firefox, it has this nifty JSON Viewer built in. Works great, looks awesome, love it. I have some web servers I deal with that send back JSON that is not strictly proper, ...
eidylon's user avatar
  • 1,769
8 votes
2 answers
2k views

How to disable drag&drop of links by default?

I would like to disable the default behavior of Firefox which causes links to be drag&drop elements because it prevents selecting part of the text with the mouse in order to copy it. I never drag&...
Forivin's user avatar
  • 564
8 votes
3 answers
5k views

What exactly does the number listed under "places.history.expiration.transient_current_max_pages" represent in Firefox?

The entry places.history.expiration.transient_current_max_pages in the Firefox about:config page is supposed to set the amount of time that Firefox remembers pages in it's history. However, the ...
Braden Dodge's user avatar
4 votes
1 answer
11k views

What is "dom.push.userAgentID" preference?

I have a modified dom.push.userAgentID preference, type is "string" (I won't share the value, may be unique), in about:config. I certainly haven't modified or created this manually, but an extension ...
user avatar
1 vote
1 answer
518 views

Media opened in a background tab will not play until the tab is selected

This feature was introduced with Firefox 56: http://mozilla.org/firefox/56.0/releasenotes However I do not like it. Oftentimes I will middle-click a YouTube song link with the intention that it will ...
Zombo's user avatar
  • 1
0 votes
0 answers
47 views

Firefox - Dialogue Box Settings

I erroneously set Firefox to never allow dialogue windows for a certain website. Now I really need to see those dialogues and I can't find an option to reset my choice. Preferably I would prefer to ...
maja's user avatar
  • 329
1 vote
1 answer
291 views

Disable mute tab animation

Starting with Firefox 52. If you are on YouTube or similar, and hit play, the mute tab button comes up immediately. However if you then hit pause, it is about a 5 second delay now before the mute tab ...
Zombo's user avatar
  • 1
2 votes
1 answer
343 views

How to disable annoying auto go to location while typing in the address bar in Firefox 48+?

I've noticed a strange behavior in Firefox since version 48 (maybe it was in the earlier versions too). When I'm starting to type a domain name in the address bar, sometimes Firefox is trying to ...
Blake Stone's user avatar
0 votes
0 answers
193 views

Get rid of stubborn browser start page [duplicate]

Recently, my Firefox home page became stuck on trustedweb.com (probably as a result of something my son had installed). No matter what I set the home page to, it always goes to that trustedweb.com ...
RobH's user avatar
  • 376
3 votes
1 answer
4k views

Firefox config - What is the font.internaluseonly.changed setting for?

In Firefox config (about:config) I have a value highlighted in bold: font.internaluseonly.changed user set boolean true What is this setting for and what does the value mean? ...
BadHorsie's user avatar
  • 559
2 votes
3 answers
5k views

How can I make Mozilla Firefox always show the download manager

This may be a bit pedantic, but I like to see my full download history, and see the progress of my current downloads in a larger format than the tiny arrow on firefox's navigation/search bar. I have ...
Druministrator's user avatar
0 votes
1 answer
80 views

How to configure the search bar over the most visited sites on the "new" page in Firefox?

I'd like to use the search bar over the most visited sites tiles on the "new tab" page in Firefox. But currently, my search requests (e.g. "test") get redirected to Yahoo! and a land on the Yahoo! ...
automatix's user avatar
  • 1,411
11 votes
1 answer
3k views

How do you hide the Extended Validation text in Firefox?

Certain sites have Extended Validation certificates. On top of the normal lock symbol, Firefox also shows the Organization name next to the lock symbol in green text. This gives users a nice, warm, ...
Stephen S's user avatar
  • 618
4 votes
1 answer
540 views

Old settings for Firefox Sync in Firefox 29

Is there a way to configure Firefox 29 to work with an self-hosted fsyncms-Server by editing e.g. some settings in about:config? I can use my server by installing an older version of Firefox and ...
grthr's user avatar
  • 41
0 votes
0 answers
264 views

Preventing redirect to router/proxy (firefox, keyword.url)

I keep getting redirected to my router page (at home) and a squid proxy server here when entering, e.g. "superuser" in the Address Bar. How do I make Firefox conform to its Keyword.URL; which I've ...
stackoverflowuser95's user avatar
2 votes
1 answer
2k views

Enabling address bar focus on new tab in firefox

A bit of malware recently overwrote a load of about:config settings in firefox. I've managed to reset them all apart from that when I open a new tab the address bar is no longer focused. Does anyone ...
wheresrhys's user avatar
3 votes
2 answers
3k views

Where is the about:config box in Thunderbird 17?

Where is the about:config box in Thunderbird 17? I have looked under the Tools Menu and it doesn't seem to be there. Is there a way to bring up a URL box in Thunderbird I don't know about?
vfclists's user avatar
  • 779
10 votes
2 answers
23k views

What are all the about: pages of Mozilla Firefox? [duplicate]

Possible Duplicate: Reference for all “about”/“chrome” address bar strings for Firefox and Chrome I know about:home, about:robots, about:config and some others, but is there somewhere a list of ...
LostPhysx's user avatar
  • 1,119
0 votes
1 answer
161 views

How do I make firefox's pagedown just go to the next page

I'm running Debian on a 400MHz machine, so everything's quite slow. When I press PgDn, I see two or three flashes of what the page should look like as it's scrolling down to the next page (I assume ...
John Baber-Lucero's user avatar
1 vote
2 answers
2k views

How to remove a about:config entry on Firefox?

When trying to activate Webgl on Firefox, I misspelled "Webgl" and wrote "Weblg". I tried to remove it from about:config with delete key or seeing right mouse click options on it, but without success....
kokbira's user avatar
  • 5,377
0 votes
1 answer
264 views

Adding newlines in Thunderbird config editor?

How can I add newlines to values in Thunderbird's config editor? I ask because in the latest update, with reply_on_top set to 1, there is no additional line break added before the quoted message, and ...
fredley's user avatar
  • 3,417
1 vote
1 answer
543 views

16.5 Font Size in Firefox

I'm using Bitstream Vera Sans as the sans-serif font in Firefox 11.0 beta for Windows 7 x64. There is a drastic jump in size from 16(pt?) to 17(pt?), to the point where 16 is barely legible, and 17 ...
yutsi's user avatar
  • 103
2 votes
3 answers
2k views

Scrolling horizontally with a regular mouse on Firefox 8

Sorry for my poor English (I'm learning it). I've searched on Google and on Super User any way to configure Firefox 8 to scroll horizontally with a regular mouse (2 buttons + scroll wheel), but I ...
Rafael Santos's user avatar
4 votes
2 answers
380 views

How to prevent Firefox from closing when app tabs are open?

Is there any way, via about:config or otherwise, to prevent Firefox from closing when app tabs are open? I'm using Firefox 5.0.1 and 8.0a1 nightly.
Jags FL's user avatar
  • 371
2 votes
4 answers
1k views

Stop Firefox from opening Add-ons dialog after every update?

Every time I install or update an add-on, Firefox then pops open the add-ons dialog after the next time the browser starts. I have never ever had a use for this, it's just another popup window for me ...
davr's user avatar
  • 5,488
3 votes
1 answer
857 views

How to stop firefox from mangling domain names?

When I type in http://example/ firefox rewites the url to http://www.example.com/. Is there any way to fix this behavior without recompiling firefox? I suspect something in about:config will help, ...
David X's user avatar
  • 484
1 vote
1 answer
67 views

Is there a website for redirecting to odd protocols from http? [closed]

For instance, if you click a URL with the apt: protocol in Ubuntu, it will install a package from your repository: Install firefox As you can see, this doesn't work on StackExchange, despite the URL ...
endolith's user avatar
  • 7,597
3 votes
2 answers
9k views

Re-enable animated GIF display in Firefox?

I'm using Firefox 2.0.0.17. I had disabled image looping (GIF animation) so that images only looped once. Now I want to turn the default looping behavior back on, so I reset image.animation_mode back ...
David R Tribble's user avatar
3 votes
3 answers
8k views

How would I go about modifying Firefox's about:config settings via an external .bat file?

I would like to change the value of a particular about:config property via a script external to Firefox. Have any of you tried this before? I've read that you can modify "prefs.js", but I was ...
Matt Refghi's user avatar
2 votes
3 answers
9k views

Firefox Download limit

I know you can queue up all the downloads in firefox and if you keep adding them, they just keep downloading. I know I can pause a download and let one finish and then start the other one. But is ...
lawerg54's user avatar