Overriding TinyMCE buttons – Justify button shortcodes not working

Because you are using button references to version 3 of TinyMCE. Beginning in WordPress version 3.9; TinyMCE 4 is being used.

Check this page, then click the “View Source” tab to see the new button names.

Working from your array above:

TinyMCE 3        TinyMCE 4
justifyleft   => alignleft
justifycenter => aligncenter
justifyright  => alignright

As far as I know, the separator button has been removed from WordPress core. I believe they removed the css rules which allowed the separator previously. This WordPress Trac Ticket may explain more.

Related Posts:

  1. How do I include a TinyMCE editor in the frontend?
  2. Remove HTML editor and visual/HTML tabs from TinyMCE
  3. Stop editor from removing tags and replacing them with nbsp
  4. Possible to stop WordPress from adding p1, p2… classes to p tags in TinyMCE?
  5. Custom Tiny MCE button to bring up a custom php popup
  6. Add unique class or ID information to tinyMCE
  7. How can I stop TinyMCE from converting my HTML entities to characters?
  8. TinyMCE Anchor Button not showing
  9. How to keep   non-breaking spaces in the visual editor?
  10. Is there a way to prevent the Editor from modifying my HTML
  11. Remove “Are You Sure” dialogue when leaving editor
  12. Creating a custom MCE view for your shortcodes [closed]
  13. Apply custom style to single word in WordPress
  14. How to customize the symbols that appear in the Visual Editor insert custom character
  15. How to keep a textarea and stop tinymce?
  16. TinyMCE Editor Set Default Tab
  17. TinyMCE – Show Advanced Options (2nd Row) By Default
  18. Disable TinyMCE autoformatting
  19. Count Words using tinymce in the front-end
  20. TinyMCE – Add class to OL – selector doesn’t seem to get parent OL,UL, just LI’s (4.6.3)
  21. tinyMCE.activeEditor = null WP editor loaded in ‘Text’ mode?
  22. Keep pasted pre formatted code as it is -with tabs- in visual editor
  23. How do i disable/disallow and tags in TinyMCE?
  24. Text cut off after the character 𪇆 in TinyMCE
  25. TinyMCE Keyup Function
  26. Insert text a cursor position in to TinyMCE text editor
  27. Using main style.css with add_editor_style
  28. Hide TinyMCE controls in TinyMCE 4 (WordPress 3.9)
  29. How can I control the HTML output of my post?
  30. Access tinymce from thickbox
  31. How can I troubleshoot why TinyMCE won’t load custom plugins in the visual editor?
  32. TinyMCE Editor as component in Gutenberg Block
  33. TinyMce in WordPress – Getting the “fullscreen” button to stay on the right when customising button layout
  34. WordPress editor strips out anchor tags when they appear on their own line
  35. wp_editor on input changes content
  36. Sortable WYSIWYG editor
  37. Set tinymce direction to rtl
  38. WordPress & TinyMCE: Failed to load
  39. How do I add a TinyMCE row that all users can see, instead of just admins?
  40. How to disable formatting
  41. Add table button in editor without Plugin
  42. Our shortcode dropdown box in Tinymce is not working in WordPress 3.9?
  43. How to get line breaks to translate to paragraphs?
  44. Localize variables with TinyMCE script
  45. Prevent the Editor From Moving My  
  46. Shift-Enter in tinyMCE (wp 3.3.1) not working
  47. TInyMCE object Tag stripped
  48. WordPress Tinymce editor broken and nothing seems to fix it :(
  49. Visual editor not showing all table rows
  50. Adding custom styles to elements, without creating new elements
  51. customize tiny MCE blockqute
  52. allowing all HTML tags in tinymce editor
  53. Keyup events in tinymce editor not working
  54. Tiny MCE doesn’t look anything like my blog
  55. tiny_mce_before_init is not trigger
  56. Save WYSIWYG editor plugin settings, only works after second save
  57. Front-end image upload from TinyME [closed]
  58. TinyMCE – no auto formatting using the_editor()?
  59. How to force insertion in editor
  60. Embed iFrame in WordPress 3.0.1
  61. Sanitizing textarea for wp_insert_post with TinyMCE enabled or disabled
  62. Why exactly does WordPress use p tags, not divs?
  63. Visual Editor is blank – 404 for plugin js
  64. Getting shortcode attribute values and shortcode content with JavaScript regex
  65. Customizing tinyMCE 4 Styles and Format dropdowns
  66. TinyMCE: Move buttons from 2nd row to top row
  67. Change the background of the TinyMCE editor with available WP arguments
  68. When I write posts I usually have to use non breaking space element in order to keep margins in between the sentences. why?
  69. TinyMCE doesn’t work correctly in the Media Modal Window
  70. Add custom value for link_class_list for the classic editor
  71. How to apply padding to TinyMCE editor?
  72. Wordpres Tinymce custom button (Gavick guide)
  73. Loading a self-hosted custom @font-face into TinyMCE dropdowns (Classic Editor) via ‘tiny_mce_before_init’ filter
  74. TinyMCE is inactive after installation
  75. WordPress, tinymce, how get the link text from dialog?
  76. tinymce and responsive line-breaks (short words after a period)
  77. How to set custom TinyMCE format style as default?
  78. Did Gutenberg block editor change the html in post content during import?
  79. Client on iPad accidentally adding tag to posts while writing
  80. Add custom TinyMCE 4 Button: Is it mandatory to have one JS per button?
  81. Nested ordered list in tinymce
  82. Prevent Black Studio TinyMCE from adding tags when switching from Visual to HTML mode
  83. Visual Editor not working properly
  84. wp_editor Too Tall when Content is Loaded
  85. TinyMCE HTML Encode Backslash
  86. Inline Editing with wp_editor and tinymce (problem with textarea)
  87. Revealing ‘code’ hidden button in TinyMCE4 and WordPress 3.9.x
  88. TinyMCE 4.0: specifying buttons to display [duplicate]
  89. regEx wp core file
  90. Adding New Row of Custom TinyMCE
  91. Using TinyMCE fiddle for node filter to add id attribute to anchors
  92. WYSIWYG with HTML source?
  93. How do I separate my theme’s styles from editor styles?
  94. Adding to he format dropdown menu tinyMCE in WordPress
  95. WordPress and TinyMCE Advanced: Failed to load javascript
  96. Is there an alternative way to upload html without using TinyMCE?
  97. Add new MCE button for toggle specific cell background color
  98. add button to tinymce
  99. install tinymce plugin [closed]
  100. WordPress Started Executing Code Inside PRE Tags Even They Are Properly Escaped