The one thing that springs out is that very long line. It looks as if it has shrunk the text in order to accommodate that long line in the page width.

Did the message appear this way when you read it on screen? Did you have to scroll left/right to see the whole line?

Some mail clients format messages in a non-standard way that others cannot parse properly, resulting in long lines. Apple's mail programs are known for this.

Doesn't look like that on the screen. Only when printing.

For me it looks like in pagesetup set to "Shrink to fit"

Maybe you can correct that problem by setting in about:config:

• mail.wrap_long_lines -> true
• mailnews.wraplength -> 72
• news.wrap_long_lines -> true

This didn't change the print result :(

I changed limits from 20 to 80 and all wraps to true

print.shrink-to-fit.scale-limit-percent; 80

view_source.wrap_long_lines; true plain_text.wrap_long_lines; true mail.wrap_long_lines;true mail.compose.wrap_to_window_width; true

And it worked for me

I searched for all *wraps and *print to check these values and still have the problem.

If it does print to a readable size, it will cut off the line instead of wrapping it

Could this be a local printer setting instead of a Thunderbird setting?

Could you get the troubleshooting information (under help) copy to clipboard (button) and paste it in here.

Also what are yountrying to print? is it from "email source"? If so and in most viewer you can turn on wrap long lines.

Only way it could be printer is if you have wrong paper size settings in your mac. it thinks its bigger than it is.

Application Basics Name Thunderbird Version 31.4.0 User Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 Profile Folder (Local drive) Application Build ID 20150109111741 Enabled Plugins about:plugins Build Configuration about:buildconfig Memory Use about:memory Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account1 (pop3) mail.bid-best.com:110 plain passwordCleartext mail.bid-best.com:587 alwaysSTARTTLS passwordCleartext true account2 (none) Local Folders plain passwordCleartext Crash Reports Report ID Submitted Extensions Name Version Enabled ID LookOut 1.2.13 true [email protected] Important Modified Preferences Name Value browser.cache.disk.capacity 358400 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 extensions.lastAppVersion 31.4.0 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.direct3d.last_used_feature_level_idx 0 mail.openMessageBehavior.version 1 mail.winsearch.firstRunDone true mailnews.database.global.datastore.id 1f886fe3-b024-413f-9ae0-c94bab34559 network.cookie.prefsMigrated true places.database.lastMaintenance 1424707863 places.history.expiration.transient_current_max_pages 104858 plugin.importedState true print.printer_HP_LaserJet_400_M401_PCL_6.print_bgcolor false print.printer_HP_LaserJet_400_M401_PCL_6.print_bgimages false print.printer_HP_LaserJet_400_M401_PCL_6.print_colorspace print.printer_HP_LaserJet_400_M401_PCL_6.print_command print.printer_HP_LaserJet_400_M401_PCL_6.print_downloadfonts false print.printer_HP_LaserJet_400_M401_PCL_6.print_duplex -810564840 print.printer_HP_LaserJet_400_M401_PCL_6.print_edge_bottom 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_edge_left 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_edge_right 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_edge_top 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_evenpages true print.printer_HP_LaserJet_400_M401_PCL_6.print_footercenter print.printer_HP_LaserJet_400_M401_PCL_6.print_footerleft &PT print.printer_HP_LaserJet_400_M401_PCL_6.print_footerright &D print.printer_HP_LaserJet_400_M401_PCL_6.print_headercenter print.printer_HP_LaserJet_400_M401_PCL_6.print_headerleft &T print.printer_HP_LaserJet_400_M401_PCL_6.print_headerright &U print.printer_HP_LaserJet_400_M401_PCL_6.print_in_color true print.printer_HP_LaserJet_400_M401_PCL_6.print_margin_bottom 0.5 print.printer_HP_LaserJet_400_M401_PCL_6.print_margin_left 0.5 print.printer_HP_LaserJet_400_M401_PCL_6.print_margin_right 0.5 print.printer_HP_LaserJet_400_M401_PCL_6.print_margin_top 0.5 print.printer_HP_LaserJet_400_M401_PCL_6.print_oddpages true print.printer_HP_LaserJet_400_M401_PCL_6.print_orientation 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_page_delay 50 print.printer_HP_LaserJet_400_M401_PCL_6.print_paper_data 1 print.printer_HP_LaserJet_400_M401_PCL_6.print_paper_height 11.00 print.printer_HP_LaserJet_400_M401_PCL_6.print_paper_name print.printer_HP_LaserJet_400_M401_PCL_6.print_paper_size_type 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_paper_size_unit 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_paper_width 8.50 print.printer_HP_LaserJet_400_M401_PCL_6.print_plex_name print.printer_HP_LaserJet_400_M401_PCL_6.print_resolution 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_resolution_name print.printer_HP_LaserJet_400_M401_PCL_6.print_reversed false print.printer_HP_LaserJet_400_M401_PCL_6.print_scaling 1.00 print.printer_HP_LaserJet_400_M401_PCL_6.print_shrink_to_fit true print.printer_HP_LaserJet_400_M401_PCL_6.print_to_file false print.printer_HP_LaserJet_400_M401_PCL_6.print_unwriteable_margin_bottom 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_unwriteable_margin_left 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_unwriteable_margin_right 0 print.printer_HP_LaserJet_400_M401_PCL_6.print_unwriteable_margin_top 0 print.shrink-to-fit.scale-limit-percent 50 Graphics Adapter Description Intel(R) HD Graphics 4600 Vendor ID 0x8086 Device ID 0x0412 Adapter RAM Unknown Adapter Drivers igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Driver Version 9.18.10.3234 Driver Date 7-9-2013 Direct2D Enabled true DirectWrite Enabled true (6.2.9200.16571) ClearType Parameters ClearType parameters not found WebGL Renderer false GPU Accelerated Windows 1/1 Direct3D 10 AzureCanvasBackend direct2d AzureSkiaAccelerated 0 AzureFallbackCanvasBackend cairo AzureContentBackend direct2d JavaScript Incremental GC 1 Accessibility Activated 0 Prevent Accessibility 0 Library Versions

Expected minimum version Version in use NSPR 4.10.6 4.10.6 NSS 3.16.2.3 Basic ECC 3.16.2.3 Basic ECC NSS Util 3.16.2.3 3.16.2.3 NSS SSL 3.16.2.3 Basic ECC 3.16.2.3 Basic ECC NSS S/MIME 3.16.2.3 Basic ECC 3.16.2.3 Basic ECC

I don't see anything special. LookOut can intercept character coding (?) try without it. and no shrink to fit

(print.printer_HP_LaserJet_400_M401_PCL_6.print_shrink_to_fit)

If you are printing source code, you can get that to wrap as well. view_source.wrap_long_lines -> true