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Can't move tabs in Firefox 17.0.1 Mac OS 10.6.8

Posted

Whenever I click on a tab and drag it to either the left or right in its original window or attempt to drag it so it's own its own browser window, I get the cursor along with the thumbnail of the tab I'm moving, but I can't drop it anywhere. The only way I can get back to functioning is to force-quit Firefox.

Additional System Details

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11

More Information

Application Basics
Name
Firefox
Version
17.0.1
User Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:17.0) Gecko/20100101 Firefox/17.0
Profile Folder
Show in Finder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
FireFTP
2.0.7
true
{a7c6cf7f-112c-4500-a7ea-39801a327e5f}
Important Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.cache.disk.capacity
358400
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size.use_old_max
false
browser.cache.disk.smart_size_cached_value
358400
browser.places.importBookmarksHTML
false
browser.places.importDefaults
false
browser.places.leftPaneFolderId
-1
browser.places.migratePostDataAnnotations
false
browser.places.smartBookmarksVersion
4
browser.places.updateRecentTagsUri
false
browser.startup.homepage
http://www.weather.com
browser.startup.homepage_override.buildID
20121128204232
browser.startup.homepage_override.mstone
17.0.1
extensions.lastAppVersion
17.0.1
font.name.serif.x-western
Minion Pro
gfx.blacklist.direct2d
3
gfx.blacklist.layers.direct3d9
3
gfx.blacklist.webgl.msaa
4
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1354754598
places.history.expiration.transient_current_max_pages
104858
places.history.expiration.transient_optimal_database_size
167772160
places.last_vacuum
1320774089
print.macosx.pagesetup-2
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHBsaXN0IFBVQkxJQyAiLS8vQXBwbGUvL0RURCBQTElTVCAxLjAvL0VO…
print.print_bgcolor
false
print.print_bgimages
false
print.print_command
print.print_downloadfonts
false
print.print_evenpages
true
print.print_in_color
true
print.print_margin_bottom
0.5
print.print_margin_left
0.5
print.print_margin_right
0.5
print.print_margin_top
0.5
print.print_oddpages
true
print.print_orientation
0
print.print_pagedelay
500
print.print_paper_data
0
print.print_paper_height
11.00
print.print_paper_size_type
1
print.print_paper_size_unit
0
print.print_paper_width
8.50
print.print_printer
print.print_reversed
false
print.print_scaling
1.00
print.print_shrink_to_fit
true
print.print_to_file
false
print.print_unwriteable_margin_bottom
56
print.print_unwriteable_margin_left
25
print.print_unwriteable_margin_right
25
print.print_unwriteable_margin_top
25
privacy.donottrackheader.enabled
true
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.timeSpan
0
security.warn_viewing_mixed
false
Graphics
Vendor ID
0x1002
Device ID
0x9583
WebGL Renderer
ATI Technologies Inc. -- ATI Radeon HD 2600 PRO OpenGL Engine -- 2.1 ATI-1.6.36
GPU Accelerated Windows
1/1 OpenGL
AzureCanvasBackend
quartz
AzureFallbackCanvasBackend
none
AzureContentBackend
none
JavaScript
Incremental GC
1
Accessibility
Activated
0
Prevent Accessibility
0
Library Versions
Expected minimum version
Version in use
NSPR
4.9.2
4.9.2
NSS
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC
NSS Util
3.13.6.0
3.13.6.0
NSS SSL
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC
NSS S/MIME
3.13.6.0 Basic ECC
3.13.6.0 Basic ECC

cor-el
  • Top 10 Contributor
  • Moderator
10752 solutions 96760 answers

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.

Try to create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.