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Why doesn't Firefox 37.0.1 warn when opening more than 15 tabs, like it used to?

soundskinky
soundskinky
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Firefox used to (last week!) throw a warning alert when trying to open (with right click) a folder with more than 15 (I think) bookmarks in it. I use this to check progress on dealing with a folder of bookmarks, to see how may I have left.

Today, it just opens 80 or more tabs without questioning. Given that I have a folder with over 4000 bookmarked pages in it, this change is pretty bad -- I don't want to spend an hour doing cmd-W to close tabs before they can start to load and drag my system to its knees and beyond.

Firefox used to (last week!) throw a warning alert when trying to open (with right click) a folder with more than 15 (I think) bookmarks in it. I use this to check progress on dealing with a folder of bookmarks, to see how may I have left. Today, it just opens 80 or more tabs without questioning. Given that I have a folder with over 4000 bookmarked pages in it, this change is pretty bad -- I don't want to spend an hour doing cmd-W to close tabs before they can start to load and drag my system to its knees and beyond.

Chosen solution

Did you check the setting in Firefox > Preferences > Tabs?

  • "Warn me when opening multiple tabs might slow down Firefox"

See also about:config:

  • browser.tabs.maxOpenBeforeWarn
  • browser.tabs.warnOnOpen

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

Read this answer in context 👍 0

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Chosen Solution

Did you check the setting in Firefox > Preferences > Tabs?

  • "Warn me when opening multiple tabs might slow down Firefox"

See also about:config:

  • browser.tabs.maxOpenBeforeWarn
  • browser.tabs.warnOnOpen

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

Modified by cor-el

soundskinky
soundskinky Question owner
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Thanks. This seems to have resolved things. Why they would turn that default off, that's another question.

Modified by soundskinky