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All of a sudden, after years of great performance, Thunderbird is now painfully slow. Slow cursor response, slow to open emails, slow navigation.

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  • 3 au această problemă
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  • Ultimul răspuns de christ1

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Slow cursor response, slow to open emails, slow navigation. Just slow.

I have 12 email addresses and a well organized folder set. I archive older messages and empty the trash. What is curious is this just suddenly started - not because of an update or anything else I know of.

No extensions. All plugins disabled. And yes, starting in safe mode speeds it up. Plenty of memory & storage space.

I am out of ideas.

Thanks for the help.

Slow cursor response, slow to open emails, slow navigation. Just slow. I have 12 email addresses and a well organized folder set. I archive older messages and empty the trash. What is curious is this just suddenly started - not because of an update or anything else I know of. No extensions. All plugins disabled. And yes, starting in safe mode speeds it up. Plenty of memory & storage space. I am out of ideas. Thanks for the help.

Toate răspunsurile (11)

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What is your anti-virus software?

Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button , then select Help > Troubleshooting Information. Press the Copy text to clipboard button and paste the information into your reply.

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Name: Thunderbird

   Version: 45.1.0
   User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0
   Profile Folder: Show Folder
             (Local drive)
   Application Build ID: 20160509110721
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory
 Mail and News Accounts
   account1:
     INCOMING: account1, , (none) Local Folders, plain, passwordCleartext
   account2:
     INCOMING: account2, , (imap) mail.fbts.com:143, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fbts.com:25, alwaysSTARTTLS, passwordCleartext, true
   account3:
     INCOMING: account3, , (pop3) mail.fbts.com:995, SSL, passwordCleartext
     OUTGOING: , mail.mcn.org:587, alwaysSTARTTLS, passwordCleartext, true
   account4:
     INCOMING: account4, , (imap) mail.fbts.com:143, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fbts.com:25, alwaysSTARTTLS, passwordCleartext, true
   account6:
     INCOMING: account6, , (pop3) mail.fbts.com:995, SSL, passwordCleartext
     OUTGOING: , mail.mcn.org:587, alwaysSTARTTLS, passwordCleartext, true
   account8:
     INCOMING: account8, , (pop3) mail.fbts.com:110, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.mcn.org:587, alwaysSTARTTLS, passwordCleartext, true
   account9:
     INCOMING: account9, , (pop3) mail.fbts.com:995, SSL, passwordCleartext
     OUTGOING: , mail.mcn.org:587, alwaysSTARTTLS, passwordCleartext, true
   account10:
     INCOMING: account10, , (pop3) mail.fbts.com:110, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.mcn.org:587, alwaysSTARTTLS, passwordCleartext, true
   account11:
     INCOMING: account11, , (pop3) mail.fbts.com:110, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fbts.com:26, alwaysSTARTTLS, passwordCleartext, true
   account13:
     INCOMING: account13, , (imap) mail.fbts.com:143, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fbts.com:25, alwaysSTARTTLS, passwordCleartext, true
   account14:
     INCOMING: account14, , (imap) mail.fbts.com:143, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.mcn.org:587, alwaysSTARTTLS, passwordCleartext, true
   account15:
     INCOMING: account15, , (pop3) mail.fbts.com:110, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fbts.com:587, alwaysSTARTTLS, passwordCleartext, true
   account16:
     INCOMING: account16, , (imap) mail.fbts.com:143, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fbts.com:587, alwaysSTARTTLS, passwordCleartext, true
   account17:
     INCOMING: account17, , (pop3) mail.fbts.com:110, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fbts.com:587, alwaysSTARTTLS, passwordCleartext, true
   account18:
     INCOMING: account18, , (pop3) cloud.fbts.com:995, SSL, passwordCleartext
     OUTGOING: , cloud.fbts.com:465, SSL, passwordCleartext, true
   account19:
     INCOMING: account19, , (imap) mail.mcn.org:143, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.mcn.org:587, alwaysSTARTTLS, passwordCleartext, true
   account20:
     INCOMING: account20, , (pop3) cloud.fbts.com:995, SSL, passwordCleartext
     OUTGOING: , cloud.fbts.com:465, SSL, passwordCleartext, true
   account22:
     INCOMING: account22, , (pop3) mail.fineuntilkindergarten.com:110, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , mail.fineuntilkindergarten.com:587, alwaysSTARTTLS, passwordCleartext, true
 Crash Reports
   http://crash-stats.mozilla.com/report/index/bp-72c1699b-dfc3-4b9b-a22a-ab2312160522 (5/21/2016)
   http://crash-stats.mozilla.com/report/index/bp-0adeffef-28ed-49bd-bb2e-3bd152160328 (3/27/2016)
   http://crash-stats.mozilla.com/report/index/bp-f82ba6f8-4a04-4ea8-9f41-e41df2160328 (3/27/2016)
   http://crash-stats.mozilla.com/report/index/bp-8c43d78e-f812-43ae-889c-8f6f62160324 (3/24/2016)
   http://crash-stats.mozilla.com/report/index/bp-317b4d9c-6520-4e54-ac5a-acda92160324 (3/24/2016)
 Extensions
 Important Modified Preferences
   Name: Value
     accessibility.typeaheadfind.flashBar: 0
     browser.cache.disk.capacity: 358400
     browser.cache.disk.filesystem_reported: 1
     browser.cache.disk.smart_size_cached_value: 358400
     browser.cache.disk.smart_size.first_run: false
     browser.cache.disk.smart_size.use_old_max: false
     dom.apps.reset-permissions: true
     extensions.lastAppVersion: 45.1.0
     font.internaluseonly.changed: true
     font.name.monospace.el: Consolas
     font.name.monospace.tr: Consolas
     font.name.monospace.x-baltic: Consolas
     font.name.monospace.x-central-euro: Consolas
     font.name.monospace.x-cyrillic: Consolas
     font.name.monospace.x-unicode: Consolas
     font.name.monospace.x-western: Consolas
     font.name.sans-serif.el: Calibri
     font.name.sans-serif.tr: Calibri
     font.name.sans-serif.x-baltic: Calibri
     font.name.sans-serif.x-central-euro: Calibri
     font.name.sans-serif.x-cyrillic: Calibri
     font.name.sans-serif.x-unicode: Calibri
     font.name.sans-serif.x-western: Calibri
     font.name.serif.el: Cambria
     font.name.serif.tr: Cambria
     font.name.serif.x-baltic: Cambria
     font.name.serif.x-central-euro: Cambria
     font.name.serif.x-cyrillic: Cambria
     font.name.serif.x-unicode: Cambria
     font.name.serif.x-western: Cambria
     font.size.fixed.el: 14
     font.size.fixed.tr: 14
     font.size.fixed.x-baltic: 14
     font.size.fixed.x-central-euro: 14
     font.size.fixed.x-cyrillic: 14
     font.size.fixed.x-unicode: 14
     font.size.fixed.x-western: 14
     font.size.variable.el: 17
     font.size.variable.tr: 17
     font.size.variable.x-baltic: 17
     font.size.variable.x-central-euro: 17
     font.size.variable.x-cyrillic: 17
     font.size.variable.x-unicode: 17
     font.size.variable.x-western: 17
     gfx.crash-guard.glcontext.appVersion: 45.0
     gfx.crash-guard.glcontext.deviceID: 0x100a
     gfx.crash-guard.glcontext.driverVersion: 10.18.13.6472
     gfx.crash-guard.glcontext.gfx.driver-init.direct3d11-angle: true
     gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle: true
     gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-d3d11: false
     gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-warp: false
     gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-try-d3d11: true
     gfx.crash-guard.status.glcontext: 2
     gfx.direct3d.last_used_feature_level_idx: 0
     mail.openMessageBehavior.version: 1
     mail.winsearch.enable: true
     mail.winsearch.firstRunDone: true
     mail.winsearch.global_reindex_time: 1414187882
     mailnews.database.global.datastore.id: a3a433d3-6862-4dfc-8b92-6c47b39cd41
     mailnews.database.global.views.conversation.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false…
     mailnews.database.global.views.global.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false…
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     network.protocol-handler.warn-external.blocked: false
     places.database.lastMaintenance: 1463338163
     places.history.expiration.transient_current_max_pages: 104858
     places.history.expiration.transient_optimal_database_size: 167772160
     plugin.importedState: true
     plugin.state.npwlpg: 0
     print.print_printer: HP 8500
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_bgcolor: false
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_bgimages: false
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_colorspace:
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_command:
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_downloadfonts: false
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_duplex: 1515870810
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_edge_bottom: 0
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_edge_left: 0
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_edge_right: 0
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_edge_top: 0
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_evenpages: true
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_footercenter:
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_footerleft: &PT
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_footerright: &D
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_headercenter:
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_headerleft: &T
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_headerright: &U
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_in_color: true
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_margin_bottom: 0.5
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_margin_left: 0.5
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_margin_right: 0.5
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_margin_top: 0.5
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_oddpages: true
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_orientation: 0
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).print_page_delay: 50
     print.printer_Canon_MG5300_series_Printer_WS_(redirected_1).pri
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After having serious problems with Symantec solutions after going to Windows 10, I am now using the built in Windows Defender.

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And it seems to be getting progressively worse. Now there is a serious delay between every keystroke. The app window refreshes a great deal, something I have never seen before.

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Try to start Windows in safe mode with networking enabled. - Win10 http://windows.microsoft.com/en-us/windows-10/change-startup-settings-in-windows-10#v1h=tab01

Still in Windows safe mode, start Thunderbird in safe mode. - https://support.mozilla.org/en-US/kb/safe-mode

Does the problem go away?

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Thanks for the suggestion. I'll try later today and post the results.

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Did the Safe Mode - Safe Mode restart. Thunderbird performance seems normal in this state.

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Back to non-safe mode and the performance is still very slow. Regularly the main window stalls with a "Not Responding" message for a second or two.

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Windows safe mode disables anti-virus software, which is most likely the culprit.

Create an exception in your anti-virus software for the Thunderbird profile folder, so that the anti-virus real-time scanner will not scan it. http://kb.mozillazine.org/Profile_folder_-_Thunderbird

Don't let your anti-virus software scan incoming and outgoing messages.

Don't let your anti-virus software scan attachments.

Don't let your anti-virus software intercept your secure connection to the server.

Remove any add-ons your anti-virus software may have installed in Thunderbird.

Keep it working. http://kb.mozillazine.org/Keep_it_working_-_Thunderbird

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I used to work for Symantec, and so have used Norton AV products for a long time. In Windows 10 it was the source of several problems, so I fell back to Windows Defender and an occasional scan with Malwarebytes. So I excluded the profile folder, but cannot do much more configuration wise. And this does not jive with the "ran fine and then became dogmeat" behavior I have experienced. Thunderbird is slow slow slow, nearly unusable.

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So I excluded the profile folder, but cannot do much more configuration wise.

If this doesn't fix the problem yet, ask in a Microsoft forum for more Windows Defender options. Or look for other software you run and which gets disabled in safe mode, and which potentially interferes with Thunderbird.