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where did my addons go

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I have three addons installed. I can see and use them from the address bar. However if I click tool/addons every category (extension, themes, plugins)is empty. Where did they go?

I have three addons installed. I can see and use them from the address bar. However if I click tool/addons every category (extension, themes, plugins)is empty. Where did they go?

Chosen solution

jdevlin said

Usercontent was the issue. I renamed it and now they are there. I don't remember why that file was added. Perhaps the first time the tabs were moved. I think I wanted classic theme back.

Okay, if you notice something isn't modified the way you expected, then we can go back into that file and see whether there are any comments explaining what those rules were supposed to do.

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

More Information

viksaan 0 solutions 1 answers

Strange, which version of Mozilla are you using?

Strange, which version of Mozilla are you using?
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Question owner

I just updated today to 66.0.1. But the problem existed before the update.

I just updated today to 66.0.1. But the problem existed before the update.
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WestEnd
  • Top 25 Contributor
61 solutions 5340 answers

It would help to know what the addons are.

It would help to know what the addons are.
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jscher2000
  • Top 10 Contributor
8580 solutions 70167 answers

If they are extensions, they should be listed on the Troubleshooting Information page. Either:

  • "3-bar" menu button > "?" Help > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

Scroll down past "Application Basics" and "Firefox Features" to "Extensions". Anything here? They should also show up on the Add-ons page. If they don't, hmm, that's strange.

If they are extensions, they should be listed on the Troubleshooting Information page. Either: * "3-bar" menu button > "?" Help > Troubleshooting Information * (menu bar) Help > Troubleshooting Information * type or paste '''about:support''' in the address bar and press Enter Scroll down past "Application Basics" and "Firefox Features" to "Extensions". Anything here? They should also show up on the Add-ons page. If they don't, hmm, that's strange.
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Question owner

WestEnd said

It would help to know what the addons are.

They are noscript, adblock plus and video downloader. I can't give exact info as that is what I was trying to find on the addons page.

''WestEnd [[#answer-1208149|said]]'' <blockquote> It would help to know what the addons are. </blockquote> They are noscript, adblock plus and video downloader. I can't give exact info as that is what I was trying to find on the addons page.

Modified by jdevlin

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Question owner

If they are extensions, they should be listed on the Troubleshooting Information page. Either:
  • "3-bar" menu button > "?" Help > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter
Scroll down past "Application Basics" and "Firefox Features" to "Extensions". Anything here? They should also show up on the Add-ons page. If they don't, hmm, that's strange.

Adblock Plus - free ad blocker 3.5 true {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d} Easy Youtube Video Downloader Express 14.3 true {b9acf540-acba-11e1-8ccb-001fd0e08bd4} New Tab Override 14.2.0 true newtaboverride@agenedia.com NoScript 10.2.5 true {73a6fe31-595d-460b-a920-fcc0f8843232} Open in Chrome 0.2.4 true {086f665e-6a55-4107-9147-f9a14e72b137} Video DownloadHelper 7.3.5 true {b9db16a4-6edc-47ec-a1f4-b86292ed211d} Classic Theme Restorer 1.7.3.4 false ClassicThemeRestorer@ArisT2Noia4dev Open In Chrome 1.6.3 false openinchrome@griffeltavla.wordpress.comjscher2000 said

Some of them I think are no longer active and probably should be deleted but how if I can't see them?

<blockquote> If they are extensions, they should be listed on the Troubleshooting Information page. Either: * "3-bar" menu button > "?" Help > Troubleshooting Information * (menu bar) Help > Troubleshooting Information * type or paste '''about:support''' in the address bar and press Enter Scroll down past "Application Basics" and "Firefox Features" to "Extensions". Anything here? They should also show up on the Add-ons page. If they don't, hmm, that's strange. </blockquote> Adblock Plus - free ad blocker 3.5 true {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d} Easy Youtube Video Downloader Express 14.3 true {b9acf540-acba-11e1-8ccb-001fd0e08bd4} New Tab Override 14.2.0 true newtaboverride@agenedia.com NoScript 10.2.5 true {73a6fe31-595d-460b-a920-fcc0f8843232} Open in Chrome 0.2.4 true {086f665e-6a55-4107-9147-f9a14e72b137} Video DownloadHelper 7.3.5 true {b9db16a4-6edc-47ec-a1f4-b86292ed211d} Classic Theme Restorer 1.7.3.4 false ClassicThemeRestorer@ArisT2Noia4dev Open In Chrome 1.6.3 false openinchrome@griffeltavla.wordpress.com''jscher2000 [[#answer-1208155|said]]'' Some of them I think are no longer active and probably should be deleted but how if I can't see them?

Modified by jdevlin

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jscher2000
  • Top 10 Contributor
8580 solutions 70167 answers

Hmm, I'm puzzled why they don't show up on the Add-ons page, Extensions panel. If you want to do some weeding out, you could try Firefox's Safe Mode.

In its Safe Mode, Firefox temporarily deactivates extensions, hardware acceleration, any userChrome.css/userContent.css files, and some other advanced features to help you assess whether these are causing the problem.

If Firefox is not running: Hold down the Shift key when starting Firefox. (On Mac, hold down the option/alt key instead of the Shift key.)

If Firefox is running: You can restart Firefox in Safe Mode using either:

  • "3-bar" menu button > "?" Help button > Restart with Add-ons Disabled
  • (menu bar) Help menu > Restart with Add-ons Disabled

and OK the restart.

Both scenarios: A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Any improvement with the Add-ons page?

Hmm, I'm puzzled why they don't show up on the Add-ons page, Extensions panel. If you want to do some weeding out, you could try Firefox's Safe Mode. In its Safe Mode, Firefox temporarily deactivates extensions, hardware acceleration, any userChrome.css/userContent.css files, and some other advanced features to help you assess whether these are causing the problem. ''If Firefox is not running:'' Hold down the Shift key when starting Firefox. (On Mac, hold down the option/alt key instead of the Shift key.) ''If Firefox is running:'' You can restart Firefox in Safe Mode using either: * "3-bar" menu button > "?" Help button > Restart with Add-ons Disabled * (menu bar) Help menu > Restart with Add-ons Disabled and OK the restart. ''Both scenarios:'' A small dialog should appear. Click "Start in Safe Mode" (''not'' Refresh). Any improvement with the Add-ons page?
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Question owner

I safe mode they show up. But that reminded me that I am using a modified chrome.css file to get my tabs back where they belong below the address bar. Could that be the issue?

I safe mode they show up. But that reminded me that I am using a modified chrome.css file to get my tabs back where they belong below the address bar. Could that be the issue?
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Question owner

FYI running windows 7 PC

FYI running windows 7 PC
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jscher2000
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8580 solutions 70167 answers

It's hard to see how a userChrome.css rule directed to the tabs bar could affect the Add-ons page. Did you just update your rules for Firefox 66 or has the file been stable since Firefox 65?

Do you have a userContent.css file? That is more likely to affect the Add-ons page.

It's hard to see how a userChrome.css rule directed to the tabs bar could affect the Add-ons page. Did you just update your rules for Firefox 66 or has the file been stable since Firefox 65? Do you have a user<u>Content</u>.css file? That is more likely to affect the Add-ons page.
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Question owner

The file has been there since begin of FEB. I found it posted after the update to 65 that killed the tabs.

The file has been there since begin of FEB. I found it posted after the update to 65 that killed the tabs.
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Question owner

Usercontent was the issue. I renamed it and now they are there. I don't remember why that file was added. Perhaps the first time the tabs were moved. I think I wanted classic theme back.

Usercontent was the issue. I renamed it and now they are there. I don't remember why that file was added. Perhaps the first time the tabs were moved. I think I wanted classic theme back.
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jscher2000
  • Top 10 Contributor
8580 solutions 70167 answers

Chosen Solution

jdevlin said

Usercontent was the issue. I renamed it and now they are there. I don't remember why that file was added. Perhaps the first time the tabs were moved. I think I wanted classic theme back.

Okay, if you notice something isn't modified the way you expected, then we can go back into that file and see whether there are any comments explaining what those rules were supposed to do.

''jdevlin [[#answer-1208187|said]]'' <blockquote> Usercontent was the issue. I renamed it and now they are there. I don't remember why that file was added. Perhaps the first time the tabs were moved. I think I wanted classic theme back. </blockquote> Okay, if you notice something isn't modified the way you expected, then we can go back into that file and see whether there are any comments explaining what those rules were supposed to do.
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Question owner

Is there somewhere I read up about what the rules there mean? I am somewhat familiar with programming just not this system.

For now everything looks good so I am just leaving it disabled.


Thanks

Is there somewhere I read up about what the rules there mean? I am somewhat familiar with programming just not this system. For now everything looks good so I am just leaving it disabled. Thanks

Modified by jdevlin

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jscher2000
  • Top 10 Contributor
8580 solutions 70167 answers

jdevlin said

Is there somewhere I read up about what the rules there mean? I am somewhat familiar with programming just not this system.

How long do you have? Most CSS rules start with a selector that identifies the part of the page that the rule styles. This is the first problem because large parts of Firefox's internal pages and user interface are not written in standard HTML, but something called XUL. This means more research for you to interpret the rules.

Once you've figured out what the selectors affect, then there are the properties the rule modifies. That may be more straightforward.

Rules in userContent.css may also have some scope limitations. For example:

@-moz-document url-prefix(about:addons) {}

around a rule would restrict its effect to the Addons page. At least in theory. The absence of such scopes can modify everything you load in a tab that has a match to the selectors. Which can have unintended consequences.

''jdevlin [[#answer-1208192|said]]'' <blockquote> Is there somewhere I read up about what the rules there mean? I am somewhat familiar with programming just not this system. </blockquote> How long do you have? Most CSS rules start with a selector that identifies the part of the page that the rule styles. This is the first problem because large parts of Firefox's internal pages and user interface are not written in standard HTML, but something called XUL. This means more research for you to interpret the rules. Once you've figured out what the selectors affect, then there are the properties the rule modifies. That may be more straightforward. Rules in userContent.css may also have some scope limitations. For example: @-moz-document url-prefix(about:addons) {} around a rule would restrict its effect to the Addons page. At least in theory. The absence of such scopes can modify everything you load in a tab that has a match to the selectors. Which can have unintended consequences.
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Question owner

Thanks I found this page and will do some reading to see if can understand what the commands were for in the file that gave the problem.

https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL

Thanks I found this page and will do some reading to see if can understand what the commands were for in the file that gave the problem. https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL

Modified by jdevlin

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jscher2000
  • Top 10 Contributor
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To get an idea of the XUL for the overall user interface, try this internal file (need to paste to the address bar and load, the link doesn't work):

view-source:chrome://browser/content/browser.xul

Or for the Add-ons page:

view-source:chrome://mozapps/content/extensions/extensions.xul

To get an idea of the XUL for the overall user interface, try this internal file (need to paste to the address bar and load, the link doesn't work): view-source:chrome://browser/content/browser.xul Or for the Add-ons page: view-source:chrome://mozapps/content/extensions/extensions.xul
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